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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 351 (Engine Controls Self-Diagnostics - 2.2L Bi-Fuel) >> Diagnostic Tests >> DTC P0171: Fuel Trim System Lean >> Test Description

Test Description

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

The number below refers to the step number in the diagnostic procedure.

  1. - If conditions were not corrected, a worn cam, worn intake or exhaust valves, or other engine mechanical failures may be at fault.