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 P014, P015, P016, P021, P022, P026, P027, P031, P032 or P034 not set. System in closed loop, throttle position switch open, throttle angle 5-30 degrees, engine coolant temperature greater than 180°F (82°C), canister at purge duty cycle of 94 percent (purge enabled) at a throttle angle of 10 degrees or greater for 2 minutes, rear oxygen sensor ready, and long term fuel trim not in effect.