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Home >> Oldsmobile >> 1989 >> Cutlass Calais Base, 4D Sedan, Standard >> Repair and Diagnosis >> Engine Performance >> System >> 2.3L PFI Tests W/Codes >> Diagnosis & Testing >> Code 45, Rich Exhaust Indicated >> Notes

Code 45, Rich Exhaust Indicated: Notes

NOTE: Test numbers refer to test numbers on diagnostic chart.
  1. The following conditions must be met to set a Code 45:
    • O2 sensor voltage is greater than .75 volt.
    • No Code 33 or 34.
    • Fuel system in "closed loop".
    • TPS greater than 5 percent.
    • Above conditions met for 50 seconds.
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