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Home >> Pontiac >> 1987 >> Fiero Base, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> 2.8L PFI Tests W/Codes >> Diagnostic Charts >> Code 55 - ECM Error
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Code 55 - ECM Error

Ensure ECM grounds are okay. If okay, replace ECM. Clear codes and confirm "closed loop" operation and no "SERVICE ENGINE SOON" light.

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