Bmw po174 code

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Bmw po174 code. What is the P0174 Code? The P0174 fault code stands for system too lean (bank 2). What this means in simple terms is that the engine is experiencing a ‘lean condition’. It’s normal for the ECU to make slight adjustments to the air to fuel ratio as you drive, but when running lean is definitely out of ordinary no matter what car you drive.

The 171/174 lean codes don’t get tripped until fuel trims hit 20%, so your other bank may be 19%. Meanwhile, these engines will signal their lean condition with as little as 3%+ fuel trim, let alone 20%. The codes themselves are only as accurate as the MAF signal compared to lambda and O2 sensor signals.

BMW E46 p0174 p0171. have a 2002 325i M54 engine and I keep getting these codes even though I have no vacuum leak, new spark plugs and coils, new DISA valve, me O2 sensors, new valve cover gasket and I just installed new OEM fuel pump. Do you guys think this could be caused by bad oil dipstick seal or bad fuel filter.The P0174 went away and was replaced by a P0171 indicating Lean Bank 1. I replaced that 02 sensor and the problem was resolved. H. hfount Discussion starter. 6 posts · Joined 2007. #7 · Jun 9, 2016. Thanks, It's what I'm thinking too. I have 130K on it and O2 sensors need to be replaced anyway.Code P0171 applies to Bank 1 and P0174 applies to Bank 2. Code P0174 mainly applies to V6 or V8 engines because 4-cylinder engines generally have only one bank, though there are a few exceptions. Some of the high performance 4-cylinder and straight 6-cylinder engines (such as those in BMW and Lexus) split the cylinders into …The fault codes "2882/2883 - fuel trim, mixture too lean" are stored in the DME. CAUSE. Possible causes may include: incorrect air filter, unmetered air or a defective air mass meter. PROCEDURE. Remove and inspect the air filter element. Only the filter with the P/N 13 72 1 744 869 must be fitted.Dec 8, 2011 · Since you only have the BANK 2 (cylinders 4,5,6) code you might check a couple of items. 1. make sure all 4 of screw number 13 are tight. 2. Check the condition of cap number 17 on the rear of the intake manifold. 3. Check that the intake manifold nuts number 14 (9 of them) are tight on the manifold. Join BMWCCA. Diagnosing and fixing BMW code P1415 typically requires a careful analysis of the vehicle’s air injection system. This code usually indicates a problem with the secondary air pump or the associated components. To diagnose the issue, you should start by inspecting the electrical connections, checking for any loose or damaged wires.What Does Code P0175 Mean? P0175 definition: Bank 2 has too much fuel or not enough air; Issue Severity: MODERATE– Extended driving with this code can cause internal engine damage. Repair Urgency: Get this code fixed as soon as possible to avoid damage to spark plugs, pistons, and catalytic converters. Diagnosis: It is important to …

Can you extend a car lease? We explain the policies at major auto manufacturers like BMW, Ford, and Toyota. Most major car brands allow lessees to extend their lease agreements and...Sep 10, 2016 · #BMW #E46 #HansGarageCommon fault codes for BMWs. How to diagnose and figure out the exact problem. Can you extend a car lease? We explain the policies at major auto manufacturers like BMW, Ford, and Toyota. Most major car brands allow lessees to extend their lease agreements and...14/03/2024. The P0174 code is an OBD-II trouble code that stands for “System Too Lean (Bank 2) which signifies that your vehicle’s air-fuel ratio is excessively lean (there is more air than fuel in the combustion chamber). In this article, I will be talking about the P0174 trouble code, its symptoms, causes, and how to fix it.E93 335i P0174 code. 2008 E93 w/N54 engine that is new to me (67k miles). I got curious, and hooked up my scanner, and it showed a pending P0174 code (Lean, bank 2). I cleared the codes, and cleared adaptive values, and so far, it has not come back. However, looking at the long term fuel trim, bank 2 is twice that of bank 1.Fixing P0174. Fixing P0174 usually involves replacing or repairing the faulty component that is causing the lean condition. This may include replacing the oxygen sensor, cleaning or replacing the air filter, checking for and repairing any vacuum leaks, replacing the fuel filter, or replacing a malfunctioning fuel pressure regulator.

BMW CODE P0171 P0174 FIX E90 E91 E92 E93 316i 318i 320i 323i 325i 328i 330i 335i 318d 320d 325d 335dIf you have BMW and you have code P0171 or code P0174 Oor...A smoke test should make it show though. Next guess would be a cracked or broken oil return line coming off the CCV valve that goes to the dipstick. My first experience with the P0171 / P0174 codes was the broken oil return line. Second time it was the intake boot. '05 X3 3.0i Alpine White/Gray Leather/Alum.See full list on roadweekly.com Auto Zone's code is P2240 and P0171 P0174, my own ODB reads P0444 P0171 and P0174. I changed Fuel Filter, disa valve, crank case vent kit, upper and lower intake boots, and etc. Pretty much everything relate to the vacuum leak. I'm thinking about the oxygen sensor is bad now. When engine idle with shift at "D" mode, it vibrates worse …24 posts · Joined 2010. #1 · Aug 31, 2012 (Edited) I am running out of ideas on what to do next on resolving the P0171 and P0174 lean codes on my 2002 330Ci. (I would like to thank all who have had this issue before me for posting in forums everywhere...I have read them all it seems)The fault codes "2882/2883 - fuel trim, mixture too lean" are stored in the DME. CAUSE. Possible causes may include: incorrect air filter, unmetered air or a defective air mass meter. PROCEDURE. Remove and inspect the air filter element. Only the filter with the P/N 13 72 1 744 869 must be fitted.

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bmw code po174 po171 po174 bmw x5 coding code bmw x5 1,845 views . Ask a Question. Usually answered in minutes! Expand. Popular Questions. Bmw 3.0 x5 hesitation problems. 2009 BMW X5. The heater is only blowing cold air on my BMW X5. 2003 BMW X5. Routing diagram for 2001 BMW X5 engine number 20349798 ...After clearing the codes, and driving for a while, the following occurred in this order yesterday: DTC: P0171 BMW 227, System Too Lean (Bank 1) P0174 BMW 228, System Too Lean (Bank 2) PENDING. P1083 BMW 202, Fuel Control Limit Mixture Too Lean (Bank 1 Sensor 1) P1085 BMW 203, Fuel Control Limit Mixture Too Lean (Bank 2 Sensor 1) Again, after ...CODE P0171 P0174 SYSTEM TOO LEAN VACUUM LEAK FIX BMW E46 325I 330I 328I 320I 323i 325xi 328xi 330xi 320xi 330CI 325CI 320CI If you have BMW and you have code...BMW CODE P0171 P0174 SYSTEM TOO LEAN FIX. VACUUM LEAK BMW E46 E39 E53 383 X3 X5 Z3 Z4 E60If you have BMW and you have code P0171 System Too Lean Bank 1 or co...Diagnosing a 2005 BMW X5 E53 with fault codes P0171 and P0174. This will also help with diagnosing BMW's 1999 to 2006 E46, E39, and E85 with an M52 or M54 en... BMW P0171 Code: Mixture Control System Too Lean. The BMW P0171 code indicates that the engine is running with a lean fuel mixture. This means that there is too much air and not enough fuel in the engine, which can cause a variety of issues. The engine may run rough, have reduced power, and may even stall.

Since you only have the BANK 2 (cylinders 4,5,6) code you might check a couple of items. 1. make sure all 4 of screw number 13 are tight. 2. Check the condition of cap number 17 on the rear of the intake manifold. 3. Check that the intake manifold nuts number 14 (9 of them) are tight on the manifold. Join BMWCCA.Apr 6, 2022 · Common Reason: Code P0174 is often related to a vacuum leak. Combustion engines run most efficiently when they maintain an air-fuel mixture ratio of 14.7 parts air to 1 part fuel. When there are more than 14.7 parts air to 1 part fuel in the air-fuel mixture, a lean condition exists and code P0174 is triggered. BMW takes pride in positioning itself as an elite luxury vehicle, except in the realm of electrics. The company has entered the electric car market with its i3 four-seater city car...This E46 came in with DTC's P0171 & P0174 codes for lean running engine. I go thru some of the common areas to test and how the MAF readings led to finding ...A BMW is referred to as a beamer because it is slang that was developed back when BMW’s only made motorcycles. However, most people don’t realize that beamer is actually an incorre...Feb 20, 2015 · I need some help. It’s a 2002 BMW 325Ci with 143,000 miles. It has started running bad and throwing codes. The P0174 and P0171 codes are the only ones left that I can’t fix. The P0174 codes is always primary. I have 2 scanner tools, the Innova 3100 w/ABS and the Creator tool specific to BMW. I have followed the forum trying to correct the ... Bmw e60 5 series 2007 525i :code P0171 and P0174 = Fuel System Too Lean bank 1 and 2Caused check engine light on (service engine soon)I cleaned the Vanos se...Oct 21, 2020 · =====Claim your FREE engine code eraser 👉 https://free.nonda.co 👈==== How to Fix P0174 =====Engine Code P0174 Saving Repair ... PO171 and PO174 codes - engine light turned on and then turned off - now it's back on Jump to Latest Follow 13K views 13 replies 6 participants last post by anthony s Dec 16, 2012BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > P0174 Code - Bank 2 too lean ... ok so a buddy's car threw this code (only this code, nothing for Bank 1). I've been looking up possible causes for it and how to diagnose.

Dec 8, 2011 · Since you only have the BANK 2 (cylinders 4,5,6) code you might check a couple of items. 1. make sure all 4 of screw number 13 are tight. 2. Check the condition of cap number 17 on the rear of the intake manifold. 3. Check that the intake manifold nuts number 14 (9 of them) are tight on the manifold. Join BMWCCA.

26 Feb 2016 ... Comments204 ; How To Diagnose A Misfire on an E46 BMW 3-Series DIY. 50sKid · 350K views ; BMW P0171 P0174 2883 2882 Bank 1/2 Lean Code diagnostics ...I pulled the P0171 & P0174 Bank 1 and 2 running too lean codes. I checked the main elbow joint on the air intake and it had a huge tear. I tried to tape it as a temp fix but still nothing. ... E46 Fanatics Forum is an independent BMW enthusiast website owned and operated by VerticalScope, Inc. Content on E46 Fanatics Forum is generated by its ...What does the P0171 code mean? The P0171 code indicates that the oxygen (O2) sensor on bank 1 sent a signal to the engine control module that the air-fuel mixture is too lean to be corrected. The O2 sensors have the ability to correct a fuel mixture of +-15%. If it needs to be corrected more than that, the P0171 code will be stored. …I had the P0171/0174 randomly occurring as well. Advice I received indicated replacing the Intake Boots was in order as this is a common source for a vacuum leak. I replaced the first one off the MAF and the result was just one of the two codes occurring, again, randomly. Replaced the DISA O-Ring, no change.Feb 20, 2015 · I need some help. It’s a 2002 BMW 325Ci with 143,000 miles. It has started running bad and throwing codes. The P0174 and P0171 codes are the only ones left that I can’t fix. The P0174 codes is always primary. I have 2 scanner tools, the Innova 3100 w/ABS and the Creator tool specific to BMW. I have followed the forum trying to correct the ... Porsche, BMW and Mercedes are more than happy to let their cars be used as shuttles between airplanes. That's a great way to get in front of potential customers, they say. Even for...Auto Zone's code is P2240 and P0171 P0174, my own ODB reads P0444 P0171 and P0174. I changed Fuel Filter, disa valve, crank case vent kit, upper and lower intake boots, and etc. Pretty much everything relate to the vacuum leak. I'm thinking about the oxygen sensor is bad now. When engine idle with shift at "D" mode, it vibrates worse …The BMW had fault codes 227 and 228 stored (P0171, P0174) indicating a lean fuel system. This means the vehicle is running lean and the DME has tried to correct the condition but has reached it upper limit. Fault codes 227 and 228 are specific to a fault when the engine is at part throttle (not idle). This tells us that it’s unlikely the lean ...

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Apr 20, 2017 · A. armstrst Discussion starter. 10 posts · Joined 2017. #1 · Apr 20, 2017. I have been struggling diagnosing a P0172 code that keeps coming up. I have a diagnostic tool to look at a number of parameters. When I look at fuel trim data I notice the following: When the car is accelerating the long term fuel trim on bank 1 stays around -10% and ... Common Reason: Code P0174 is often related to a vacuum leak. Combustion engines run most efficiently when they maintain an air-fuel mixture ratio of 14.7 parts air to 1 part fuel. When there are more than 14.7 parts air to 1 part fuel in the air-fuel mixture, a lean condition exists and code P0174 is triggered.A BMW fault code P0171 or P0174 means that your engine is getting more air than fuel, also known as running "lean". Your BMW engine is equipped with oxygen …I'm actually experiencing the same codes too: (P0171/P0174) on my: 01 BMW X5 4.4i E53/M62 engine type I've cleaned the air mass sensor, but after a few driving around same codes came back again. If that is the same case for me, it would be great!!! but if not, imagine trowing:$245.17 for my Part number: 13 62 1 433 567 @ Germanautoparts.com and ...Make: BMW. Code: P0174. Definition: Fuel System Too Lean (Cylinder Bank 2) Description: Key on or engine running, all electrical components off and coolant temperature at least 80 degrees Celsius; and the DME detected the Bank 2 Fuel Control System reached its lean correction limit. The fuel status is in a closed loop pattern, the coolant te.Make: BMW. Code: P0174. Definition: Fuel System Too Lean (Cylinder Bank 2) Description: Key on or engine running, all electrical components off and coolant temperature at least 80 degrees Celsius; and the DME detected the Bank 2 Fuel Control System reached its lean correction limit. The fuel status is in a closed loop pattern, the coolant te.Previous BMW rides, 91 E30 318IS, 89 E30 325is, 96 E36 328is, 98 E36 M3, 99 E39 540 Sport, 00 368 M Coupe, 01 E46 330Ci, 2003 M3 Carbon Black, 1997 328IS, 2011 335 Sport sedan, ... Only show this user #4 · Apr 29, 2010. SAE Code P0170 DTC Code 16554 Description Fuel Trim, Bank1 Malfunction check for vacuum leaks, o2 …The move reflects how traditional carmakers are under major pressure to get deeper into the shared-mobility market. Relying simply on selling cars is no longer enough. BMW and Daim...I need some help. It’s a 2002 BMW 325Ci with 143,000 miles. It has started running bad and throwing codes. The P0174 and P0171 codes are the only ones left that I can’t fix. The P0174 codes is always primary. I have 2 scanner tools, the Innova 3100 w/ABS and the Creator tool specific to BMW. I have followed the forum trying to correct the ... ….

6 Feb 2021 ... if u get p0171 and p0174 please check your disa valve please sunscribe to get updated with my videos thanks.A smoke test should make it show though. Next guess would be a cracked or broken oil return line coming off the CCV valve that goes to the dipstick. My first experience with the P0171 / P0174 codes was the broken oil return line. Second time it was the intake boot. '05 X3 3.0i Alpine White/Gray Leather/Alum.Do you get easily bored with things like the color of your car? BMW is introducing a couple of concept cars that literally change color at your whim. Advertisement Like the offerin...BMW CODE P0171 P0174 FIX E90 E91 E92 E93 316i 318i 320i 323i 325i 328i 330i 335i 318d 320d 325d 335dIf you have BMW and you have code P0171 or code P0174 Oor...Note that on BMW vehicles, the PCM is known as the DME (Digital Motor Electronics). NOTE: Although code P0171 – “System too lean – Bank 1” refers to an air/fuel metering issue on Bank 1 of V-type engines, this code also applies to in-line engines that have only one “bank” of cylinders. Therefore, the “Bank 1” part of the ...What is the P0174 Code? The P0174 fault code stands for system too lean (bank 2). What this means in simple terms is that the engine is experiencing a ‘lean condition’. It’s normal for the ECU to make slight adjustments to the air to fuel ratio as you drive, but when running lean is definitely out of ordinary no matter what car you drive.Sep 17, 2021 · As you are not getting any trouble codes about the Pre-Cat O2 heaters, change the Pre-Cat O2's. Fuel System Status start in open loop (1). Tries to go to closed loop (2) but the pre-cats are dead so goes to status 8 = faulty pre-cats O2 sensors. Hot Idle. The log starts off in fuel status 1, open loop. 18 Mar 2020 ... [ English ] BMW740i DTC Codes P0171, P0174 System Too Lean Bank1 & Bank2 , P10ED Repair Result · Comments2. Bmw po174 code, Definition: System Too Lean Bank 2. The P0174 engine code indicates that your car’s air-fuel ratio is too lean. The gas in your car has to be mixed with oxygen before it can combust and power your vehicle. When the air and gas are present in the right ratio (known as the stoichiometric ratio or “stoich”), the mixture burns completely., What is the P0174 Code? The P0174 fault code stands for system too lean (bank 2). What this means in simple terms is that the engine is experiencing a ‘lean condition’. It’s normal for the ECU to make slight …, Visit BMW of Fort Lauderdale for amazing BMW vehicles for sale. Our local dealership serves customers in Hollywood, Miami, and the surrounding areas. Call Us : Call Call Us …, 24183 posts · Joined 2007. #3 · Jun 28, 2010. +1. Auto Zone always says the 0174 is 02 sensors (and it isn't). The codes for 02 are different and while it COULD be 02 sensor related, it is likely a vacuum leak. Usually a hole in the intake boot tract. Check out my YouTube Channel for DIY's and other fun stuff HERE., Diagnosing a 2005 BMW X5 E53 with fault codes P0171 and P0174. This will also help with diagnosing BMW's 1999 to 2006 E46, E39, and E85 with an M52 or M54 en..., bmw code po174 icv location bmw lean codes 2004 series lean youtube 1,490 views . Ask a Question. Usually answered in minutes! Expand. Popular Questions. Valvetronic internal fault and servomotor power limited. 2000 BMW 3 Series. How to reset a window motor for 2006 BMW 325i. 2006 BMW 3 Series. Need serpentine belt diagram …, p0174 with misfire P1343 p1345 p1347. Some of you may know I have been chasing codes p0171 and 174 at startup and cold idle, I replaced the vacuum hose in the back of the intake for the S.A.P along with the endcaps and cleared the codes. After a cold start I got codes p0174 p1343 p1345 1347, I moved the coils around to see if the misfire …, Hello guys, I got these 3 codes on my OBD scanner with a car who doesn't start. P0313 Misfire Detected With Low Fuel (I had low fuel at the time of the test) P0171 System Too Lean - Bank 1. P0174 System Too Lean - Bank 2. All start-up with the broken fuel pump, which I changed (with a cheap one, after all is a 2005 325XI with 280K km)., BMW E46 p0174 p0171. have a 2002 325i M54 engine and I keep getting these codes even though I have no vacuum leak, new spark plugs and coils, new DISA valve, me O2 sensors, new valve cover gasket and I just installed new OEM fuel pump. Do you guys think this could be caused by bad oil dipstick seal or bad fuel filter., BMW takes pride in positioning itself as an elite luxury vehicle, except in the realm of electrics. The company has entered the electric car market with its i3 four-seater city car..., I pulled the P0171 & P0174 Bank 1 and 2 running too lean codes. I checked the main elbow joint on the air intake and it had a huge tear. I tried to tape it as a temp fix but still nothing. ... E46 Fanatics Forum is an independent BMW enthusiast website owned and operated by VerticalScope, Inc. Content on E46 Fanatics Forum is generated by its ..., Codes P0172 & P0175 and rough idle at startup. For the past few weeks, my 2004 330ci has been idling a little rough for the first 30-60 seconds after starting. After it warms up a bit, it runs perfectly fine. No issues other than rough idle for the first ~30 seconds after starting. Over the weekend, it threw codes P0172 & P0175 - running rich ..., Nov 28, 2023 · There are several common causes of code P0171 in BMW vehicles: Air intake leaks: Any vacuum leaks in the air intake system can result in an imbalance in the air-fuel mixture. Faulty oxygen sensors: A malfunctioning oxygen sensor can provide incorrect readings, leading to an imbalanced mixture. Dirty or clogged fuel injectors: If the fuel ... , P0174 BMW Code - Mixture Control 2 System Too Lean Bank 2. How to Fix. Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and …, BMW SUVs are some of the most luxurious and sought-after vehicles on the market. With a variety of models, features, and price points, it can be difficult to know where to start wh..., shanneba. 2557 posts · Joined 2008. #8 · Oct 11, 2010. Since you are only getting P0174 lean on bank 2 (cylinders 4-6) you could check the O2 sensor voltage with diagnostic software like a GT1/DIS Autoenginuity etc. There is an air distribution part on the top of the intake manifold., In this episode I go over the p0174 obd2 code for a 2003 bmw 525i. this code is usually cased by too much air getting in the engine. usually caused by broke,..., The meaning of fault code P0174. P0174 is triggered when the upstream oxygen sensor on cylinder bank 2 indicates that the conditions are too lean in one of the cylinders. This means that the cylinder has too much air or not enough fuel according to the optimal air-fuel ratio. When the sensor readings show there is too much oxygen, the ... , In this video, I solve the engine codes P0171 and P0174; which signify a lean condition on both banks of cylinders. The solution was replacing an o-ring.0:00..., Har du problem med OBDII-kod P0174 på din BMW? Läs om möjliga orsaker, symptom och lösningar på AutoCodes.com, den bästa länken för bilreparation. , 2004 BMW 325i e46 OBD Codes P0174 & P0171. Today I was driving and the Check Engine Soon light came on. I have an OBD sensor and hooked it up and ran the codes and it gave the results: P0174 - System to Lean (Bank 2) P0171 - System too Lean (Bank 1) I have been looking at different forums as well as you tube and even the OBD …, Tech Notes. The P0174 code means that more air than gasoline is detected in the exhaust gases exiting the combustion chamber. If the P0174 is set in along with the P0171 code, it is highly likely that the problem is caused by an intake leak. If there are no intake leaks, the next step is to replace the air filter and clean the Mass Air Flow ..., P0171, P0174 resolved. Hi Everyone, About 4 weeks ago, my service engine soon light came on (2003 X5 3.0i). I had the codes read and found P0171, P0174 indicating both banks were lean. Anyone who has had to do the search for these codes knows there are many reasons and lots of things to try. In my case it was a failed DISA valve which was ..., I have a 2003 bmw e39 530i with 197k miles on it. I got a P0171 code and P0174 code about 2 months ago. I bought new Bosch 02 sensors because I have the money. I installed them and the code came back. So then I thought vacuum leak. I got a smoke test and the only places leaking were the CCV and 1 cap on the back of the intake., DTCs P0171 and P0174 are generic codes that set when the feedback on the engine's air/fuel mixture becomes too lean for the Engine Control Module (ECM) to correct within its normal operating range. A lean mixture is a mixture that has too much air or not enough fuel. The ECM sets a target air/fuel ratio and monitors it using oxygen sensors and ..., Hey guys, today I have a 2007 BMW 328i and I just wanted to share a quick tip for anyone that is having trouble with a check engine light and codes P0171 or ..., The FIXD wireless OBD2 scanner and free app for iPhone and Android translates your check engine light into plain English so you can rest easy. In this video,..., So codes are p0171 and p0174, I open and check. all in take boots and inspected they are goood. DSAV seems good , gasket seems good and it has functioning well. Idle and Throttle body are good. CCV I found lots oil on hose from VCG to CCV, all over the oil separation and underneath hose to dip stick. So, that has been resolved., The P0174 code means that more air than gasoline is detected in the exhaust gases exiting the combustion chamber. If the P0174 is set in along with the P0171 code, it is highly likely that the problem is caused by an intake leak. If there are no intake leaks, the next step is to replace the air filter and clean the Mass Air Flow (MAF) Sensor., Answered by a Fixya Expert. Hello, I have a 2010 BMW X3. Got a P00BC, P0171, and P0174 code. Got MAF sensor changed, but mechanic said when he install the new MAF, he got the same code, so he install my old MAF back. Look online about testing MAF sensor. I unplug MAF sensor to test it. I read if engine shuts off when doing this, the MAF is bad., Sep 17, 2021 · As you are not getting any trouble codes about the Pre-Cat O2 heaters, change the Pre-Cat O2's. Fuel System Status start in open loop (1). Tries to go to closed loop (2) but the pre-cats are dead so goes to status 8 = faulty pre-cats O2 sensors. Hot Idle. The log starts off in fuel status 1, open loop. , P0171 and P0174 occur when the air/fuel mixture on the vehicle gets too lean. They are both thrown when the oxygen sensors detect that there is not enough oxygen in the exhaust. The engine then makes adjustments to compensate and throws these codes, which trigger the service engine soon light. When these codes both appear at the same time, it ..., When the BMW P0175 code appears, it indicates that the Mixture Control 2 System is Too Rich Bank 2. This means that there is an issue with the fuel system, which is causing the engine to run too rich. Here are some of the symptoms that you may experience if your BMW is affected by this code: Check Engine Light – The most common symptom of the ...