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Cadillac
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1989
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DeVille 2D Coupe
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Repair and Diagnosis
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Engine Performance
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DFI ECM Tests W/Codes
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Adjustments
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Code E13 - Oxygen (O2) Sensor Not Ready
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Failure Conditions:
Failure Conditions:
Oxygen sensor voltage stays between .275-.630 volt for more than 40 seconds.