Checking Mass Air Flow When Under Partial Load

Checking Mass Air Flow When Under Partial Load









- Turn the ignition switch to the ON position.
- Contact Trionic.
- Read value: Airmass Deviation from Calculated (Trionic).
- Drive the car in top gear with a steady high engine load.
- Driving uphill is recommended.





- State what the diagnostic tool shows:

-15% to +15% Remedial Action OK

Other value Fault Not Rectified