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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 83 (Engine Controls Self-Diagnostics - 2.2L) >> Diagnostic Tests >> DTC P0134: O2S Circuit - Insufficient Activity (Sensor 1) >> Diagnostic Aids

Diagnostic Aids

WARNING: This page is about a different car, the 2002 GMC Sonoma and 2002 Chevrolet S10 Pickup. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Never solder the O2S wires.

Inspect for an exhaust leak typically within 12 inches (30.5 cm) upstream of the O2S.