How to resolve the P2138 trouble code?

[AlainaLee]

P2138 trouble code indicates the need to replace the vehicle's throttle pedal. Below are the specific causes for the occurrence of the P2138 trouble code: 1. Throttle body malfunction. When the throttle body fails, the vehicle may exhibit symptoms such as engine shaking, unstable idle, weak acceleration, and difficulty starting when cold. In this case, the throttle body should be thoroughly cleaned, especially removing any oil sludge attached to it. If the throttle body is structurally damaged, it should be replaced promptly. 2. Throttle position sensor issues. When the throttle pedal malfunctions, the vehicle may show problems like weak acceleration, severe jerking, or lack of response when accelerating. In such cases, the throttle position sensor should be inspected, and it is advisable to use high-quality fuel regularly. 3. After completing the repairs, it is essential to clear the trouble code promptly; otherwise, it may cause memory confusion in the vehicle's electronic system.

[Marilyn]

Answer 1