Diagnostic Aids
WARNING: This page is about a different car, the 2002 Oldsmobile Intrigue and 2002 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.
Use EVAP Pressure/Purge Diagnostic Station (J-41413) to pressurize EVAP system to aid in locating intermittent leaks. Move all EVAP components while testing with Ultrasonic Leak Detector (J-41416). A temporary blockage in EVAP canister purge valve, purge pipe or EVAP canister could cause an intermittent condition. Reviewing FAILURE RECORDS vehicle mileage since diagnostic test last failed may help determine how often condition that caused DTC to set occurs. This may assist in diagnosing condition.