For 1990-2009 cars

### Cleaning Procedure

Caution: Wear safety glasses when using compressed air in order to prevent eye injury.

1. Remove the throttle body from the vehicle. Refer to Throttle Body Assembly Replacement .

Important: The IAC valve and the TP sensor must be removed before cleaning. The the IAC valve and the TP sensor may malfunction if exposed to compressed air or solvents.

2. Remove any dirt or carbon deposits/buildup from the throttle valve (1) and the throttle bore.
3. Remove any dirt or carbon from the bypass air passages (3) in the throttle body.
4. Remove any dirt or carbon from the cranckcase breather pipe (2) and passage.
5. Clean the passages and the throttle bore with compressed air.
6. Inspect that the throttle valve operates smoothly and freely.

Install the throttle body to the vehicle. Refer to Throttle Body Assembly Replacement .