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Home >> Plymouth >> 1985 >> Voyager LE, 2.2 C, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> 2.2L EFC System >> Testing >> Computer Controlled Component Tests >> Code 91
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Code 91

Should hear oxygen solenoid clicking. If oxygen solenoid is clicking, press and hold ATM button until next test code appears. If oxygen solenoid does not click, replace unit.