Diagnostic Aids

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.

The REDUCED POWER lamp will illuminate and the ECM will default to the default throttle authority limp home mode.

Diagnose any other ECM DTCs first. See DIAGNOSTIC TROUBLE CODE DEFINITIONS .

Possible causes for P1514 are:

Skewed IAT or MAP sensors.
Vacuum leak, low compression, or incorrect valve timing causing MAP sensor reading to be skewed.