Intake pipe pressure air mass throttle angle deviation

Intake pipe pressure air mass throttle angle deviation is due to the following reasons:

1. Carbon deposit on the throttle valve or related parts: The throttle valve that has not been cleaned for a long time may accumulate carbon scale, which may lead to its insensitive action, and then lead to the deviation of angle reading.

2. Sensor failure: The sensor of the throttle valve may fail due to wiring problems, self-aging or other reasons, resulting in inaccurate reading.