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Home >> Pontiac >> 1984 >> Fiero SE, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> 1.8L/2.5L/5.7L TBI Tests >> Code 51 - Faulty Prom

Code 51 - Faulty Prom

Check that all pins are fully inserted in socket. If okay, replace PROM, clear memory and recheck. If Code 51 reappears, replace ECM.

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