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Home >> Plymouth >> 1985 >> Voyager Base, 2.6 G >> Repair and Diagnosis >> Engine Performance >> System >> 2.2L EFC System >> Testing >> Computer Controlled Component Tests >> Check Procedure
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Check Procedure

Connect diagnostic readout box to engine harness connector. Put system in ATM test mode. Press and hold ATM button until test codes appear as follows: with oxygen feedback system - Code 92. Oxygen feedback system with manual transaxle - Code 92. Without oxygen feedback system, with automatic transaxle - Code 93.