Test Conditions
WARNING: This page is about a different car, the 1992 Cadillac Fleetwood and 1992 Cadillac DeVille. However, it is still accessible from the selected car via links, so may be relevant.
PCM Codes E14, E15, E16, E21, E22, E26, E27, E31, E32 and E34 not set. System in "closed loop". Throttle switch open. Throttle angle 6-30 degrees. Coolant temperature greater than 180°F (82°C). Canister at a purge duty cycle of 94 percent at a throttle angle of at least 10 degrees for 10 minutes.