DTC 54 - Pcm Fuel Circuit Error
PCM FUEL CIRCUIT ERROR
This DTC indicates a fault in the fueling circuit of the PCM is present. Check if DTC 17 is also stored. If DTC 17 is set, refer to DTC 17 chart first. If DTC 17 is not set, replace PCM. If PCM is faulty and must be replaced, TDC OFFSET must be programmed into the new PCM. When all diagnosis and repairs are complete, clear DTC's and verify for proper operation.