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Home >> Oldsmobile >> 1985 >> Calais Base, 2.5 U, Standard >> Repair and Diagnosis >> Engine Performance >> System >> 3.0L/3.8L PFI Tests W/Codes >> Clearing Trouble Codes

Clearing Trouble Codes

Turn ignition switch on and ground "TEST" lead at ALDL connector. Turn ignition switch off and remove ECM fuse from fuse block for 10 seconds. Remove "TEST" lead ground.

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