2021年2月20日 · P2189 is a DTC code that can occur in your Volkswagen Touareg. It indicates the air fuel mixture is too lean at idle , specifically in bank 2 (we’ll cover how to find bank 2 later). Its is different from the much more common P0174, which indicates that bank 2 …

2013年4月23日 · P2189 : System too lean at Idle, Bank 2. Randomly came up today, did some searching here and found an old post from Arizman3 saying to check the following: Also, found another post that said to use MAF Cleaner. Car seems to be running fine besides the RPM randomly increasing when at a light in neutral. Mods of interest: UM Tune, Evoms V-Flow.

The P2189 automobile fault code indicates that the engine is running too lean at idle. This can cause the engine light to turn on and make it difficult to start the engine when cold. The possible causes of this fault code include intake air leaks, faulty oxygen sensors, ignition misfiring, faulty fuel injectors, incorrect fuel pressure, lack of ...

2024年12月19日 · The P2189 code stands for “System too lean at idle,” which means the air-fuel mixture during idle has too much air and not enough fuel. Possible causes of the P2189 code include a faulty oxygen sensor, faulty gas cap seal, and a loose oil filler cap.

The computer has set a code P2189 stating that the fuel mixture is lean at an idle. This is the main code, however, any component malfunctioning within this loop that has the potential to cause a lean mixture will also be set in code.

2020年6月14日 · Repair Information for P2189 Volkswagen code. Learn what System Too Lean At Idle Bank 2 means, location and how to repair?

2020年6月14日 · When the diagnostic trouble code P2189 appears, it indicates that the engine control module (ECM) has detected a lean air-fuel mixture in Bank 2 at idle. This means that there is an imbalance between the amount of air and fuel entering the engine, resulting in a mixture that is too lean for proper combustion.

2016年12月1日 · OBD II trouble code P2189 is a generic code that is defined by all carmakers as “System Too Lean at Idle Bank 2”, and is typically set when the PCM (Powertrain Control Module) detects a difference of about 25% between the desired air/fuel mixture when the engine is running at idle, and the actual, measured air/fuel mixture.

2023年11月22日 · When your vehicle shows the P2189 code, it means that the engine is not getting the right mix of air and fuel in one part of the engine when it’s idling. This can make the engine run rough or less efficiently. The problem could be caused by air leaks, issues with sensors that measure air flow, or problems with how fuel is delivered to the engine.

2020年6月14日 · Code P2189 Description. In order to provide the best possible combination of drivability, fuel economy and emission control, the Powertrain Control Module (PCM) uses a closed loop air/fuel metering system. The PCM monitors the HO2S signal voltage and adjusts fuel delivery based it in closed loop fuel control.