Diagnostic Aids

WARNING: This page is about a different car, the 2003 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.

The system will go lean if an injector is not suppling enough fuel.
The system will go lean during high fuel demand.
Using a scan tool, review the Failure Records. If an intermittent condition exists, see INTERMITTENT CONDITIONS under SELF-DIAGNOSTIC SYSTEM.