Checking Mass Air Flow When Under Partial Load

Checking Mass Air Flow When Under Partial Load









- Drive the car in top gear with a steady high engine load.

Driving uphill Is recommended.
- Contact Trionic.
- Read value: Airmass Deviation from Calculated (Trionic).





- State what the diagnostic tool shows:

-15% to +15% - Remedial Action OK

Other value - Fault Not Rectified