FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

Checking the Air Mass Limiter



Checking The Air Mass Limiter





- Drive the car at wide open throttle. With a manual gearbox, engage 2nd gear or higher.
- Driving uphill is recommended.
- Obtain the following readouts with the diagnostic tool:





Max Engine Torque
Manual Transmission
Automatic Transmission (Bus from TCM)
- Specify whether any air mass limitation is active.

One - Checking the Fuel Supply

None - Checking the Air Mass Limiter





- Obtain the following readout with the diagnostic tool:
Knock Control

Is knock control active?

NO - Checking the Fuel Supply

YES - Checking Engine Torque