What is Passat fault code p2 188?

Passat fault code p2 188 indicates that the mixture is too rich at idle speed, and the cylinder bank is 1. Check the throttle opening of the car. It is estimated that the throttle is dirty and needs to be cleaned or replaced.

Passat common fault code

1, 179 16: Idle speed adaptation has reached a higher level 2.

2. 1809 1: The control unit is not completed.

3. 179 16: This code appears, indicating that the computer ECU has set the idle speed too high. Generally, the air intake at idle speed is too small, and there are many reasons, such as air filter blockage, dirty throttle and flowmeter failure.

4. 1809 1: It is said that the programming is not finished. If these two lights appear together, I guess there is something wrong with your air intake system, such as the damage of air flow meter and data distortion, which is easy to happen.