What are the engine fault codes p0 123 and p0 108 of Changhe Freda van?

Engine fault codes p0 123 and p0 108 of Changhe Freda van are: P0 123 is high signal voltage of throttle position switch, and P 108 is high signal voltage of manifold pressure sensor. Because the throttle is dirty, the signal is unreliable. Clean the throttle for repair. The specific operation steps are as follows:

1. Remove the throttle inlet hose.

2. Open the throttle.

3. Clean the throttle with a brush.

4. Spray the throttle with detergent.

5. Reinstall the air inlet hose.