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Home >> GMC >> 1995 >> Forward Control 7.4 N >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 4.3L >> Trouble Code Charts >> Code P0133, Heated Oxygen Sensor Slow Response >> Diagnostic Aids

Diagnostic Aids

Check sensor heater operation.

Fig 1: Code P0133 Schematic ("S" & "T" Series 4.3L (VIN W) Bank 1, Sensor 1) Heated Oxygen Sensor Slow Response
G95C28086
Fig 2: Code P0133 Flow Chart ("S" & "T" Series 4.3L (VIN W) Bank 1, Sensor 1) Heated Oxygen Sensor Slow Response
G95G27538
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