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Cadillac
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1987
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Eldorado
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Repair and Diagnosis
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Engine Performance
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System
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DFI ECM Tests W/Codes
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Diagnosis & Testing
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Hard/Intermittent Code E013 - O2 Sensor Not Ready
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Action Taken:
Action Taken:
ECM turns on "SERVICE SOON" light.
ECM turns off canister purge and switches system to air cleaner.
Disables closed loop.