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Home >> Chevrolet >> 1983 >> Chevy Van G20, 5.0 F >> Repair and Diagnosis >> Engine Performance >> System >> Feedback Carburetor Tests W/Codes >> Code 45 - Rich O2 Sensor Failure

Code 45 - Rich O2 Sensor Failure

Fig 1: Flow Chart, Code 45 - Rich Oxygen (O2) Sensor Failure
G8519
NOTE: If M/C solenoid does not click with ignition ON and TEST terminal grounded, and there is no Code 23 or 54, check for sticking M/C solenoid. If Code 54 is present, go to Chart 54 first.
Fig 2: Flow Chart, Code 45 - Rich Oxygen (O2) Sensor Failure
GB0048245
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