DTC Parameters
WARNING: This page is about a different car, the 2002 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
- Engine RPM is greater then 600 RPM.
- No TP sensor DTCs are set.
- P1635 or P1639 is not set.
DTC sets when the ECM calculated MAP does not correlate to the approximated airflow rate as determined by the MAP sensor.