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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 258 (Engine Controls Self-Diagnostics - 2.2L) >> Diagnostic Tests >> DTC P0171: Fuel Trim System - Lean >> Test Description

Test Description

WARNING: This page is about a different car, the 2003 GMC Sonoma and 2003 Chevrolet S10 Pickup. However, it is still accessible from the selected car via links, so may be relevant.

The number below refers to the step number on the diagnostic procedures.

  1. 7 -  If conditions were not corrected, a worn cam, worn intake or exhaust valves or other engine mechanical failures may be at fault.
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