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Home >> Cadillac >> 1992 >> DeVille Base, 4D Sedan >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Pcm Trouble Code Diagnosis >> Pcm Code E45, Oxygen (O2) Sensor Rich Exhaust Signal >> Failure Conditions

Failure Conditions

O2 sensor stays rich for more than 51 seconds.

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