Audi a6l, 2, 8 cylinder bank 2, 8 cylinder bank 1, the secondary air system throughput is too small. What is the reason? Check there.

Audi a6l's 2.8 cylinder bank 1, the throughput of secondary air system is too small, but the idle intake of throttle is too small, and the dirty throttle is the main reason for this failure. Cleaning the throttle body can eliminate this fault. The specific operation steps are as follows:

1. Remove the Audi a6l throttle hose.

2. Open the throttle of Audi a6l.

3. Clean with a brush.

4. Spray with detergent.

5. Replace the hose and it is finished.