Diagnostic Aids

WARNING: This page is about a different car, the 2002 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.

Inspect for the following conditions:

Restrictions in the MAP sensor vacuum source.
A missing or damaged MAP sensor seal.
Disconnected, damaged, or incorrectly routed vacuum hoses.
Intake manifold vacuum leaks.
Vacuum leaks at the throttle body.

If condition is intermittent, see INTERMITTENT CONDITIONS under SELF-DIAGNOSTIC SYSTEM.