Oct 28, 2020 · E46 Fanatics Forum is an independent BMW enthusiast website owned and operated by VerticalScope, Inc. . Mar 27, 2010 · Secondary air monitor not getting ready Hello all, I have secondary air and evap not getting ready, and I know that air pump works, for approx 90 sec after start up. I started getting codes 0491 and 0492 a couple of weeks ago. I have vacuum and air pump working but secondary air would not get ready. , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada Apr 28, 2009 · An independent mechanic replaced the secondary air pump, air valve, electric control valve, and rubber hose at a total cost of $1,050. For the fuse and the relay, there should be a diagram on the fuse box indicating which one is which. Oct 7, 2009 · Over the past year+ my 2003 330xi has given the "secondary air flow too low" code 3 times. When I start the car "cold" (it doesn't really get cold here), the pump does turn on. i could be wrong, because i was too scared to touch anything however since the SAP system is compact, it could also come from figure 1 to figure 7[another Jan 7, 2011 · I've been having the same problem myself. Nov 28, 2011 · My secondary air low flow code cleared by filling the tube between the pump and the exhaust valve with seafoam. Pop center hose on air pump and can spin pump with finger - pump is not tight or frozen, no prior noise from pump. Then start the engine for about 4 seconds so the Seafoam is blown in the exhaust valve. , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada Nov 23, 2012 · Hi, I have a BMW E46 from 03/1999, i just bought it last month, and the secondary air pump was broken, so did the secondary air pump valve was stuck, and was open all the time. Now loosen the hose fitting from the secondary air pump to the combination valve at the pump. Aug 30, 2010 · If the pump is working, and making the leaf blower sound for 2 minutes after a cold start, use the secondary air pump to blow Seafoam into the exhaust ports and valves. 5 etc. Cracked, broken, dry rotted vacuum line. basically the secondary parameters need to be aligned with enable/disable conditions? Mar 16, 2009 · 1st step- verify the secondary air pump blows air on a cold startup. Jun 27, 2006 · E46 Fanatics Forum is an independent BMW enthusiast website owned and operated by VerticalScope, Inc. The purpose of the secondary air injection pump is to comply with emissions standards set by regulatory authorities. If the relay has too much Voltage drop, the pump may spin too slow and cause the airflow to be low. Jul 26, 2010 · The late E46 models are equiped with a secondary MAF, which monitors how much air is being pump into the exhaust. 5 seconds. Clogged one-way valve due to carbon build up. , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada Sep 17, 2016 · 2004 E46 / 330Ci / ZHP // 152Kmi Issue: code P0411 – Secondary Air Injection System Incorrect Flow Recently, my 330 has thrown the Service Engine Soon (SES) light which was the P0411 code. o The hose running from the main pump to the first vacuum pump was destroyed. I replaced the MAF sensor along with the filter and hose. But my CEL returned several times. i even swap the secondary air pump and the valve with my other E46 and still will not reset. that means the pump and the valve are not the problem. nathansbmwworkshop. I decided to go ahead and buy this intake cam sensor ($81. amazon. Did some research, looked in the glove box, and found that the fuse for the secondary air pump was popped. The secondary air pump and air pump valve are high-failure parts on BMWs. BTW, if anyone know anymore specifics about my plain jane E46, I would love to here it. All the little anti vibe pads are broken. The hose is about $20. May 5, 2008 · Please help, I have a 316i E46 2000 (1. The combination valve must be closed. The failure of one of more of these parts is causing the first 2 P04xx codes to appear. After the mechanic cleared the codes, the car ran for 1 day before the Engine light and same codes (P0491 and P0492) returned. I forget the colors, but one of them is brown (BRN), this is ground. 7 parts, this is called a "rich" mixture. My old pump went out and i had it replaced (my dad works at a bmw dealership). Possibility vent valve or secondary air pump? Aug 3, 2008 · I made a thread a few months back called "Limp mode Fix?" about the problems my dad's car was having. To know more, you can also read our posts on E46 fuel pump symptoms, Duramax water pump symptoms, and Dodge bad alternator symptoms. Jan 28, 2019 · The electric vacuum control valve (#7) opens when triggered by the ECU (Engine Control Unit) and allows vacuum to open the secondary air control valve (#14) mounted on the exhaust manifold, this allows the SAP air pump to add the extra air (oxygen) into the exhaust to heat the catalytic converters during a cold start and warm up (that 70-90 Mar 3, 2013 · I have been looking for other cars with SAP's that may fit in an e46, but are a lot cheaper, similar to the Hyundai MAF that fits on certain models of e46. The SAP provides the air. Proceeding with crossed fingers. I traced this little line back to where it plugs in on the backside of the engine compartment somewhere. Apr 30, 2015 · The SAP will not lead to a blown head gasket. Several things in this system can result in the code, from a simple vacuum hose to the pump itself. Apr 7, 2009 · Seem like it's common issue on our car. , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada The Kassel Performance secondary air pump (SAP) removal / delete kit includes 1 OEM BMW block off plate and 1 OEM BMW block off plate gasket. My Z3 pump has been very loud since new, and is especially annoying changing pitch when going over speed bumps in the morning. My first “fix” was to replace the check valve at the exhaust manifold. I tried replacing this last night with an after market hose and it wouldn Jun 20, 2012 · After starting the engine, the actuation time of the secondary air pump is from 2. Jun 26, 2012 · BMW 3 Series Forum - Technical Talk on the BMW E46 2001 Compact E46 316ti - Secondary Air Pump. Reconnect the hose and run the car 5 seconds so the air pump blows the Seafoam into the exhaust port. 9) BMW, when i start up the car, i now get a dull hum fro mthe engine/secondary air pump. is this normal. Jul 13, 2024 · E46 Fanatics Forum is an independent BMW enthusiast website owned and operated by VerticalScope, Inc. However, since this system doesn’t help the vehicle much (and even hinders it), some drivers decide to go for a secondary air pump delete E46 forum. The DME uses the data from the engine temperature sensor located in the cylinder head between cylinders 5 and 6 to determine when to activate and deactivate the secondary air pump (SAP). I had two SAP codes at the time which I ignored since it wasn't connected. , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada Oct 31, 2010 · I unplugged the pump hose from the diverter valve and cranked the car. Well, it's purpose is actu Apr 30, 2017 · I've attached some pictures. When these systems detect low airflow, the pump is usually shut down within 5-10 seconds. Jul 23, 2022 · E46 Fanatics Forum is an independent BMW enthusiast website owned and operated by VerticalScope, Inc. The relay make contacts sticking or sporadically sticking result in continuous power supply or impermissibly long power supply to the secondary air pump. Logically its an emissions control system, and you'll have to reflash the DME if you really want to remove that SAP, or else your just gonna run into a lot of problems. Malfunctioning fuel pump symptoms are things car owners don’t want to experience, whether it is a simple whining sound from that fuel tank or an overheated engine. Symptoms: 1. Sep 27, 2023 · E46 Fanatics Forum is an independent BMW enthusiast website owned and operated by VerticalScope, Inc. It is kind of light pink color. With the engine off, pull the hose off the pump output and blow into it hard. It's only job is to pump fresh air into the exhaust so that the CATs can use it to convert the crap in the exhaust to clean stuff while the CATs are still cold. on a cold start and then throws a SES light. Can anyone provide a definitive answer? Thanks!! Mar 18, 2021 · E46 Fanatics Forum is an independent BMW enthusiast website owned and operated by VerticalScope, Inc. Aug 6, 2022 · E46 Fanatics Forum is an independent BMW enthusiast website owned and operated by VerticalScope, Inc. This caused the large hose leaving the air pump to wear thin and cause a leak. Content on E46 Fanatics Forum is generated by its users. The damn Secondary Airpump monitor is not setting. Oct 7, 2016 · GET A NEW VALVE; http://amzn. Oct 1, 2015 · E46 Secondary Air Pump Power Jump to Latest 3K views 10 replies 4 participants last post by marcozandrini Oct 4, 2015 Feb 27, 2022 · Symptoms of a bad secondary air injection pump or SAS pump are an engine that stalls or runs rough when idling. Dec 31, 2019 · The pump is controlled by the engine computer (DME in BMWspeak). Turns out the Secondary Air Pump (a massive $300 device!) along with the solenoid/valve and the vacuum hose are only needed for emissions purposes. Oct 27, 2010 · My secondary air pump sounds like a big rig when i start it in the morning. Feb 13, 2010 · Fuel Pump Going Bad--Symptoms Jump to Latest 124K views 23 replies 12 participants last post by Fast Bob Sep 3, 2017 The secondary air pump is one of those weird contraptions that is either a visual question mark or throwing emission codes at you. Oct 15, 2018 · Hi everyone, New to the forum. Replaced the relay and check engine light solved. . May 12, 2020 · Changes were made in the Junction Box Fuse Panel effective 3/1/2007 in the middle of the 2007 Model run, so your 10/2006 build date 2007 model is an "Early" 2007 with 2006-layout fusebox. Can I remove the secondary air pump? Yes, the removal of the secondary air pump is possible. Sep 21, 2014 · 2. All the pipes are fine too. In order, 1 and 2 are the valve where the hose enters from the pump. Sep 6, 2016 · I have already ran the air pump manually by connecting it to the battery, I took off the valve and cleaned it up, and checked the 50amp fuse. , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada Nov 1, 2011 · After starting the engine, the actuation time of the secondary air pump is from 2. Apr 10, 2015 · secondary air pump valve vacuum line from secondary air pump valve to electric switch DISA valve all 6 spark plugs all 6 ignition coils both pre-cat 02 sensors fuel filter with vacuum line going to upper intake boot Cleared the codes and a day after light comes up again. Jun 12, 2008 · E46 Forums. Jan 14, 2015 · I traced this to the secondary air pump. So, hardly a pressing issue. Oct 27, 2009 · im having a CEL for primary & secondary air pump, along with the intake cam sensor. I live in Arizona where the summer night temp is just starting to get into the 80s. The air pump works very well so that's not the issue. If it's pushing out air then it's working. S. E46 Fanatics Forum is not in any way affiliated with Bayerische Motoren Werks AG VerticalScope Inc. I had to use zip ties to hold the air pump down for Today we're tackling the check engine light on my 2005 E46 wagon by diagnosing and resolving the secondary air system. Repeat this about 3 times and then let sit 20 min. $950 to replace the pump and relay. Jan 31, 2021 · E46 Fanatics Forum is an independent BMW enthusiast website owned and operated by VerticalScope, Inc. Feb 22, 2014 · The salmon colored one matches the part number listed by eneka so I will replace it, assuming its the secondary air pump relay. Nov 22, 2006 · Secondary Air Pump Jump to Latest Follow 2K views 8 replies 7 participants last post by SD 328I Nov 23, 2006 Apr 13, 2013 · Listen and Feel if the pump is workingit should be obvious. com/shop/inf Nov 14, 2008 · saw this on e46 Fanatics: Last November the Check Engine light appeared on a 2001 325Ci and the diagnostic code reader displayed P0491 and P0492. Tested the pump and it blows tons of air. May 7, 2024 · After spending multiple hours climbing down rabbit holes here and learning far more about the secondary air system than I ever intended to I’m at my wits end. Why would the commanded secondary air status be off during a cold start? Details below if interested. Jump to Latest Mar 2, 2016 · GO TO MY WEBSITE AND BMW FORUM !!!https://www. I am getting the same fault codes as before. An independent mechanic replaced the secondary air pump, air valve, electric control valve, and rubber hose at a total cost of $1,050. , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada Nov 17, 2011 · Then, I cheked the air pump and it blows like a leaf blower gone mad, but the secondary air pump will only stay on for 3-5 sec. My mechanic replace the secondary air valve and I know the secondary air pump is working fine but the stupid SES light came back in 1 day driving. ('99 323i) after some time, i heard the whinning of the air pump much louder than before. Apr 4, 2016 · That's funny my truck had the same symptoms, it was throwing a lean code. Check vacuum hose leading from electric valve at rear of engine to valve attached to exhaust manifold. Cracked, broken, dry rotted air supply line. , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada In conclusion, the BMW P0492 code related to the AIR system insufficient flow bank 2 can be fixed by cleaning or replacing the air pump filter, replacing the air pump, checking and repairing vacuum lines, replacing the secondary air injection check valve, replacing the oxygen sensor, or replacing the catalytic converter. Jan 19, 2011 · 05 E60 P0491 Secondary Air Injection System Fault Hey Guys, I too have this issue for about 2 weeks. Apr 10, 2008 · The pump takes 12v and a pretty high amperage, so you can simply unplug the pump and connect the pin on the pump side of the connector that does not go to the BRN wire on the car side of the connector to the + terminal located nearby, and connect the pin that is connected to the BRN wire on the connector to ground, and the pump should run. Obviously this is tripping the SES light. Feb 6, 2020 · Hey guys. Thanks Sep 22, 2007 · E46 Fanatics Forum is an independent BMW enthusiast website owned and operated by VerticalScope, Inc. I ended up finding a bad Secondary Air Pump hose and replaced that but I seafoamed the car with the hose. , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada Mar 7, 2017 · How to test whether your BMW Secondary Air Pump and Air Pump Control Valve (EGR Valve) Mar 26, 2011 · The secondary air pump / check valve / vacuum line system that kicks into action on cold starts is the culprit. I tried downloading euro 2 software on the ecu and that didnt delete it too. When the air ratio goes below 14. Blow air into the line with a slight pressure (do not use compressed air). last year i deleted the secondary air pump on my 325ci. At startup at random days the car smokes Jan 21, 2023 · The secondary air pump works on the mechanism of improving the quality of exhaust gas before being discharged into the environment. Abour a week ago i noticed air coming from the sides/where the top/middle/bottom are riveted together, upon start up. May 11, 2011 · In this case, the Tis wiring that I posted before seems to be conflicting with the air pump relay circuit that Kaboom posted and I had verified that it is for the air pump. Dec 29, 2012 · BMW secondary air-pump sounds like metal grinding in the morning or when engine is cold in the morning or after roughly 8 hours shutting off. I have replaced check valve as suggested by dealer and connecting hoses. Feb 25, 2011 · The car makes smog, and the CAT turns it into clean air. The combination valve must now be opened. Apr 19, 2003 · BMW E36 Secondary Air Pump and Non-Return Valve Replacement Vehicles: 1996 and up U. to/2dYAIinGET A NEW SECONDARY MAF: http://amzn. That still didn't fix the problem. You can hear it easily, it sounds like a vacuum cleaner. Result = “no joy” (still has the code) Nov 20, 2022 · so for example to set the secondary air system monitor the air pump must be on, o2 must be heated up, cold start enrichment must be activated and coolant temp needs to be -10 to 70. , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada Oct 16, 2022 · E46 Fanatics Forum is an independent BMW enthusiast website owned and operated by VerticalScope, Inc. 5MM vacuum line from secondary air pump where it wraps around intake manifold and goes into vacuum switch behind intake, back out to check valve and back into the intake. Oct 4, 2017 · So my 04 e46 325i secondary air pump has not been coming on for the usual 30 seconds or so lately. the hissing sound went from loud to being quiet, as if all the pressure leaked away From what i closely analyzed, the leak came from the figure 1, and the hose on top of it (figure 4). I have not been able to pull the bmw fault codes but p0491 and p0492 came up. Feb 13, 2011 · I don't get it, secondary air pump is there to make sure all unburned fuel doesn't come out the exhaust pipe. It also creates performance issues, such as a sluggish engine, a rough idle or poor throttle response. the car runs great. Sep 12, 2020 · Do it long enough and it permeates the interior, like being a smoker or air fresheners. thefreeze - disconnect the hose on the pump when you first start the car and feel if there's any air coming out. to/2d9zRg8How to clean out the emissions air Oct 17, 2011 · Combustion engines operate by burning an air/fuel mixture of about 14. Also, check the rubber hose runs from the control valve to the check valve. maybe O2 The secondary air pump has to start audibly after a cold start of the engine. , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada Nov 26, 2012 · The newer 330's used a different air pump and check valve that connects to the front of the engine. Here is what I have done; got all the vacuum leaks fixed, new oem MAF sensor, my mechanic inspected all of the SAP components to see what was failing and everything checked out fine, did the BMW monitor readiness cycle and nothing. A trip to an inspection station charges approx. Recently got a 2003 325i. This is a few hour job on a V8 if you are going to remove the air tube between the heads. Thank you for everyone helping me out locating the Salmon relay. The process of turning smog into clean air is not very efficient when the CAT is cold, so they provide a source of fresh air to help make the smog clean until the CAT warms up. Start vehicle engine. Noise isn't a reliable indication of anything. This allows the secondary air pump output to be controlled, avoiding too lean exhaust conditions. May 14, 2009 · If the valve is open and the pump is off, exhaust gas will flow down into the pump, with moisture condensing in the pump, leading to water accumulation and pump damage. So far, really fun. Mar 1, 2016 · E46 Fanatics Forum is an independent BMW enthusiast website owned and operated by VerticalScope, Inc. The car is garaged which also holds the heat in. , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada Nov 16, 2008 · Bought the genuine BMW Secondary Air Pump relay and put it in, but the car still will not start. The other does not matter the color, it is 12v when the pump should be on, and 0 at all other times. What now?? P0411, great SAP issue. May 31, 2006 · The air pump turns on when the engine is cold, and pumps fresh air into the exhaust to warm up the cats. it costs around $10. The codes (P1189, P1188, P0173, P0170) were being thrown much more frequently (almost every other day to daily) until I changed my secondary air pump (it was something I had to do for a whilebefore I started throwing codes). Just because the pump runs does not mean the relay is good, but it means the relay is working. Apr 17, 2011 · My 150K mile 2001 325i is throwing secondary air faults. Mar 26, 2008 · Don't replace the air pump without first determining what caused the code. Its January and cold and I am lazy. Pop hood, check all SAP hoses - fine, no issues. In each of these scenarios, the pump cannot be "sucking alot of power from your engine". E46 General Jan 3, 2009 · The secondary air injection consists of an air pump (that black plastic cylinder-shaped thing next to the exhaust side of the engine) and a valve. The 4 components that are part of this system are: - the air pump - the air diverter valve (mounted on the front, exhaust side of the cylinder head, connected to the air pump via a hose) - the air diverter valve vacuum solenoid - the front Sep 7, 2020 · Figure 1 Working at right front of the cylinder head, using a flathead screwdriver; loosen the secondary air hose clamp. com 49 votes, 47 comments. Not sure if there was a bad batch of WP but 2. I really don't know a whole hell of alot about doing my own maintenance and repairs, but just from looking under the hood, replacing this thing looks simple. Nov 28, 2023 · DAMN !!! replaced the pump, pulley, T-Stat (just in case) and no issues so far. I have a temporary fix on the air pump to keep it from moving around and cut back the section of hose eliminating the leak. No associated symptoms. Car stalls on cold start sometimes in the morning but most of the idle very hard idle or a slight bad idle. A failed secondary air pump (aux pump) can cause this, as well as the valve on the exhaust manifold that controls the air flow known as the auxiliary air valve. When the check valve fails, hot exhaust enters the air pump. Let the Seafoam sit for a bit after the secondary air pump blows the Seafoam into the valve and into the Exhaust valves, i. You are looking at the wrong source of your problem (loss of engine power). With engine COLD, start engine and check to see if pump turns on. the car has no check engine light. If I were you, I replace the air pump relay. I got it diagnosed at my local shop and they said it's the secondary MAF. I've verified the air pump itself is working just fine, the vacuum solenoid valve on the exhaust manifold is working properly, the vacuum hoses are intact, and the "salmon" relay behind the glove box is working properly. Sep 23, 2011 · E46 Fanatics Forum is an independent BMW enthusiast website owned and operated by VerticalScope, Inc. Thus, within a sample 211323002501JD79 MSS54HP DME, we find a 14-byte string at offset 0xE3BE representing that particular DTC that looks like the Nov 13, 2020 · hi everyone, my secondary air system monitor will not reset for smog. 5 to 105 seconds depending on the engine temperature and engine speed. The secondary air pump is not designed Dec 1, 2023 · Need help to diagnose between secondary air pump and relay. If the pump works it should turn on for 5-10 seconds. Remove the clamp and hose from the pump. The check valve wasn't opening. , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada Nov 10, 2007 · First, check to see if secondary pump works. i did a cold start so many times. After replacing the exhaust I test drove the car a few times before putting the SAP back in. Mar 15, 2017 · This is a quick video on how to replace a check valve and vacuum line. 2) Check valve failure - The check valve is activated by vacuum and allows the air pump to inject air Apr 17, 2017 · E46 Fanatics Forum is an independent BMW enthusiast website owned and operated by VerticalScope, Inc. The part is still under warranty and i'll be replacing it in the next couple of weeks, i'll let you know if we figure out what exactly is causing the noise. Nov 20, 2008 · if you apply directly 12V to the pump and it spins, your pump is OK. 00 above is not including labor then it is to high for just the part. In the absence of heat, it can also use more air. to/2dYzbcjGET CLEANER; http://amzn. It makes a high screeching sound and then about after 2-3 mins when the catalytic converters are warm, the sound goes away. In cold weather, this creates condensation which kills the pump. Then let the engine sit 15 minutes and warm up the car. It's the charcol canister-looking-thing right up front on the passenger side of the engine bay. If not, you have a bad pump and/or fuse and/or relay. Any way, there are 2 pins on the pump, and it does not matter which one you applly batt+ to it. Repeat this fill and restart 3 more times only running the engine 5 seconds so the secondary air pump runs. First BMW. Theoretically, you only need one that has the same air flow, and can fit in the space of the factory air pump, with minimal modification. This will clear the secondary air passages enough in the engine to allow the second O2 sensor to detect a higher secondary air flow. To access remove the cabin air filter housing (T25? torx), and the cover below it on the firewall (Two T25? torx also), and the plastic partition on the drivers side around the Master cylinder and DME (screw rivets). Feb 4, 2015 · Here is the deal, the relay is much cheaper than the pump. , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada Aug 26, 2018 · A good air pump produces a leaf-blower-strong blast of air, not a subtle breeze. Jun 1, 2012 · When enough carbon builds up the valve will not close on it's seat allowing exhaust and water (a combustion byproduct) to enter the secondary air pump, which over time will cause the pump to fail and drain your wallet. The secondary air system is prone to faults that illuminate the check engine light It does this by electronically simulating the inputs and outputs of Apr 4, 2017 · The secondary air pump ONLY runs on Cold Engine Start, if the engine is warm then the pump does not run. Mar 27, 2007 · The best price I've found for a new secondary air pump, and valve is $300 shipped. You may notice a rough idle when the engine is cold, noise from the Jun 1, 2008 · Other places that many have seen issues are at the sealpoint for the DISA adjuster on the intake manifold, the secondary air pump vacuum acuator line on the exhaust side of the car, right at the vacuum acuator (degradation from heat), and the oil separator tubing that plugs into the intake manifold from the CCV valve. I understand the purpose and process of the secondary air injection system. Since his car needs an emissions inspection this month, the CEL it is showing prevents it. Fix - Replace the (~$400) pump. 3 is the other end, coming out from the pump. e. I bought the STEWART pump which lasted me on my older e46 almost 100k miles and its still going (e46 @ 225k). I pulled off the little vacuum line that's supposed to open it and there is no vacuum to it when the SAP is running. Oct 7, 2009 · Fortunately I had my secondary air pump and valves replaced under the CPO warranty. If the air rises above 14. After changing the pump I went 5 days without throwing codes. Check for air puffs at the check valve where the pump hose connects. Mar 12, 2009 · Turns out my problem was just a relay gone bad. Conclusion. It's not hard just have to move a few things out the way just to get your hands to fit Mar 4, 2010 · SECONDARY AIR INJECTION SYSTEM: ===== There are several components to the secondary air injection system. You can also pull the output hose off and feel for air flow. I suppose this means time to replace the valve. , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada Nov 19, 2011 · E46 Fanatics Forum is an independent BMW enthusiast website owned and operated by VerticalScope, Inc. 7 to 1-14. Dec 3, 2012 · Anyhow, that is how you can check that one without jacking up the car and removing fuel filter cover etc. Apr 30, 2022 · A failed secondary air injection pump is far from the worst thing that can happen to your car, but it can be annoying. Shorting the output of the SAP while it is running also loads the SAP pump and causes it to basically stop quickly or "brake" so that the pump does not coast down and continue to pump more air into the exhaust stream and confuse the O2 sensors/DME with too much Oxygen. 00 so if the $325. Reset the code twice using my new Android Torgue app (Droid Razr) in conjunction w/new Bluetooth OBDII (Excel) diagnostic plug device. ). If replacing the pump, loosen the hose clamps on each end of the hose, at the pump and the valve (green arrow). On an I6 it should be a much quicker job. The system is monitored via the use of the pre cat O2 sensor. I would also recommend you change all the 3. Dec 7, 2023 · The secondary air injection pump helps to address this issue by supplying additional oxygen to the exhaust gases, promoting the oxidation of unburned fuel and reducing harmful emissions. Sep 20, 2022 · Has anybody’s secondary air pump went bad or started making a weird sound when you turn the car on? Mine has been doing it for a while now and i just want to know if anyone has had similar problems. 7 parts, it is called a "lean" mixture. Short of a race car or a stripped 100% track use car, I wouldn't go catless either. The pump has a connector near by with two wires. Feb 23, 2023 · E46 Fanatics Forum is an independent BMW enthusiast website owned and operated by VerticalScope, Inc. Nov 27, 2013 · For example, if we look at NikolaiD's chart, we can find that code 170 (AA), 'Minimum flow of secondary air', which is most commonly associated with the secondary air pump delete, has a code of 'AA'. Dec 26, 2015 · It pumps air into the exhaust using the valve that is opened up by the vacuum hose during cold starts. This happens because the SAS System may not maintain idle speed when it fails, partially closing the throttle plate to maintain RPMs. you have to remove the glove box to get to it. Valve: On 04+ models the valve is actuated by pressure from the pump. The diverter valve inlet has vacuum, but it is not anywhere as strong as the air blowing out the pump hose. Jan 19, 2010 · Fill the tube between the secondary air pump and the valve with Seafoam before the car is started in the morning. A Check Engine light that returns the fault codes F5 and F6. E36 323i/328i/M3. 7 parts air to 1 part fuel. Aug 11, 2009 · The hose will hold just over an ounce of Seafoam. Nov 11, 2015 · Hello everyone, I am stuck on a dilemma with my 2001 325i. comCLICK HERE TO BUY YOUR NEXT CAR PARTS FROM MY AMAZON STOREhttps://www. The noise is definitely coming from the pump. Btw mine is a 2000 323i Dec 27, 2015 · 1) Air pump failure - This is a fairly common failure caused by a falling check valve. Where on earth is the secondary air pump relay on a 2004 330ci convertible? Before you say "under the glovebox like all other e46's" I went to a junkyard and pulled 2 good salmon fuses from other e46's. 4 is the hose at the valve side, and 5 is the hose at the pump side. E46 General. The pump is about $250. Feb 27, 2012 · Since the intake manifold is out and I'm already replacing vacuum tubes, I started wondering WTF some of those vacuum hoses actually do. Its possibility fuel related or like balidawg replyed a air leak : through emissions related parts. The problem has been isolated to the Secondary Air pump and relay system. , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada Mar 26, 2017 · This code is for the SAP (P2430: Secondary Air Injection System Air Flow/Pressure Sensor Circuit), which was removed for the exhaust replacement. Mar 24, 2012 · The air pump itself is separated from the mount. It should run for about 90 seconds. The dealer says I need a new secondary air pump and valve and the service will cost over 700 bucks. So the question is how can i code it out from the ecu?[emoji848] Sent from my SM-J415F using Tapatalk Jul 30, 2024 · Hello all For the first time check engine came on. My car was catless when I bought it and I'm shopping for catted section 1s to throw on. (with the same symptoms you describe) it turned Jan 14, 2013 · So my 2006 E46 330cic has the CEL come on. Still no luck. Tags 316ti air pump secondary. There is also an electric vacuum valve at the rear of the engine and a valve near the pump. my other E46 passed the smog with the swapped secondary air pump and valve. I bought a replacement switch and went to changing out the lines. 35K subscribers in the e46 community. For those wanting to see more of BMW's 4th generation 3 series, the beautiful and… Jan 26, 2015 · I'm getting the code p0411 secondary air injection system incorrect flow. I’ve bench tested the pump ( it works), checked the electrical supply at the pump and was reading just over 14v. U need to get it diagnosed via scanner. I then decided to search this site and found your post. Launch CReader gave a weird code 24 Tank venting valve; OBD Fusion have a P1434 sap relay short to positive; and yet another app (Car scanner) gave a P1434 Diagnostic Module Tank Leakage Malfunction. A typical code for air pump issues is "Secondary Air System Flow Too Low" (an F5 or F6 code on some BMWs). 3. Oct 28, 2014 · E46 Fanatics Forum is an independent BMW enthusiast website owned and operated by VerticalScope, Inc. Wouldn't know much in the practical sense, since mein Bimmer is secondary-pump-free, as are all Bimmers South of the Rio Grande Nov 25, 2007 · that pump is pumping air into the exhaust stream to accelerate the CAT tempature, it is not pollution pump. Start the engine and quickly check to see if the air pump is running and blowing air out where the hose connects. From what I have read on this forum, the valve May 3, 2021 · The secondary air pump is starting to whistle briefly at cold startup. sensor should be here on wed and have been wondering about the air pump. If the power supply of the secondary air pump is fine, but the secondary air pump runs with a scraping, whistling or scratching noise or not at all, the secondary air pump is to be replaced. This was effective in my efforts to clear the code and clean the valve and exhaust valves. Sep 1, 2010 · A few months back there was a secondary pump failure case caused by the corresponding relay stuck closed, thus running the pump till it fried. Hearing the soun. It runs for 90 seconds maximum, and then turns off, providing extra combustion to heat up the 02 sensors so that your vehicle goes from open loop (basic parameters) to closed loop (reading from sensors) faster. Secondary Air Pump, Problems? Jump to Latest 2K views Feb 26, 2008 · Fault Codes Indicating Secondary Air. , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada See full list on oards. No Check Engine light yet. Block off plate BMW Part # 11 12 1 438 086 Gasket BMW Part # 11 72 7 505 259 When coupled with the European 2 (EU2) tune, the SAP and post-cat O2’s are removed from the software as BMW intended for the Dec 9, 2010 · #5 in the diagram - PN# 11747810831 Also vacuum lines 4,7, & 9. The air pump was not flat on the top, it has an air inlet that actually connects to a specific Mass Air Flow sensor just for the air pump to determine if the proper amount of air is flowing into the engine. Mar 19, 2013 · E46 Fanatics Forum is an independent BMW enthusiast website owned and operated by VerticalScope, Inc. , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada Oct 2, 2022 · E46 Fanatics Forum is an independent BMW enthusiast website owned and operated by VerticalScope, Inc. Oct 4, 2005 · Finally I took it to a shop that ran a diagnostic test and found a busted vacuum hose on the secondary air pump changing this helped for a week or so, but the car still didn't feel as strong as it did when I first got it. Apr 24, 2014 · I have a 2004 BMW 325xi with 150k. I got P0491 and P0492 code. I have a check engine light, few codes are secondary air valve, secondary air system and O2 sensor. Any codes that suggest anything to do with the secondary air system will be indicating a failure of the secondary air pump, check-valve or vacuum control switch, or a vacuum leak between the vacuum control switch and the check-valve. Here's how to troubleshoot and fix it. Feb 15, 2008 · It is common practice to do the valve at the same time, The oem pump is $231. The relay the pins in this configeration: NC (normal closed) --- 30 to 87a, or 87a has 12v with engine off NO --- 30 to 87, or 87 has 12v when DME wants to run the pump Nov 5, 2013 · E46 Fanatics Forum is an independent BMW enthusiast website owned and operated by VerticalScope, Inc. If it runs, it likely is not the pump, which is good ($350). Which led me to feel that carbon build up in the exhaust valve passages used by the secondary air system, like the 540 in the pic was causing the low flow. A CAT needs to be hot to do it's job. Since the first one is the Fuel Pump Relay - and the symptoms are consistant with no fuel, I thought I'd check that relay again for fun. My e39 pump can barely be heard. Mine works for about 90 sec after a cold start. 5 years on WP with only 30k mileage is not right, only good thing is i got the price back from FCP under warranty. Feb 12, 2023 · How do I know if my secondary air injection pump is bad? When the secondary air injection pump fails, you will see the Check Engine Light on your dashboard. The source of clean air is the Secondary Air Pump. For the first part of the video, I build you a diagram and show the Jun 3, 2020 · The hissing lasted for an estimate of 10 or so minutes. Apply a vacuum to the combination valve and blow air into the hose fitting again. In cold starts it just blows air into the exhaust for a short time. The secondary air pump is not designed Jan 17, 2023 · Limited Time Sale Easy Return Some of the common symptoms are: noise from the valve train, strange noises from the hydraulic lifters, reduced oil pressure, a hotter engine, and a noisy oil pump . I’ve got a 2001 325i with an m54 that will not reset the secondary air. , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada Dec 2, 2009 · E46 Forums. Rich Mixture = Too much fuel, not enough air Lean Mixture = Too much air, not enough fuel Feb 27, 2013 · While the engine is cold, remove the big hose between the pump and the check valve. I did some searching here and some posts say to replace the pump, others say not to and replacing the valve will fix it and some say just the hose. What are common symptoms of the failing secondary air pump system? Noisy / faulty bearings inside the pump. The flow from the pump is very strong and steady but the pump itself I cannot hear over the engine. the first year or so i had this E46, i never heard it much. But my check engine is always on so i want to code it out. fobk fqkljb psadzh rldq eud csaa plqr xjpapn dfrv uopvg