Test Conditions
WARNING: This page is about a different car, the 1995 Cadillac DeVille. However, it is still accessible from the selected car via links, so may be relevant.
Codes P021 and P022 not set. TP sensor does not change more than .8 degree for 1.01 seconds. Engine speed is greater than 500 RPM and does not change more than 100 RPM for 1.01 seconds. EGR does not change more than 4 percent for 1.01 seconds. A/C clutch must stay on or off during test (cannot cycle).