Diagnostic Aids

WARNING: This page is about a different car, the 2008 Suzuki Swift +, 2008 Pontiac Wave, and 2008 Chevrolet Aveo. However, it is still accessible from the selected car via links, so may be relevant.

The system will become lean if a fuel injector is not supplying enough fuel - P0171 or P2187.
A lean condition could be present during high fuel demand due to a fuel pump that does not deliver enough fuel, a plugged fuel filter, or a restricted fuel pipe - P0171 or P2187.
The system will become rich if a fuel injector is supplying too much fuel - P0172 or P2188.
Review the Freeze Frame/Failure Records with a scan tool.