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P0231 Diagnostic Trouble Code Discussion for May 2009

Fuel Pump Feedback Circuit Low Voltage


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Trouble Ticket Help Requests for DTC P0231
Help Request Posted
1998 Ford Contour GL 2.0L Stall, Erratic F Pump relay VIN: 1FAFP6633W
P0231: fuel pump secondary circut failure. ... erratic Fuel pump relay activity. Sounds like Morse code. Tried swapping out FP relay and PCM relay during failure with no improvement. Normally with KOEO, fuel pump will only run appx 1 second when key is turned on, unless cranking or running, but this er...
May 07, 2009
1998 Ford Contour GL 2.0L Stall, Erratic F Pump relay VIN: 1FAFP6633W
P0231: fuel pump secondary circut failure. ... erratic Fuel pump relay activity. Sounds like Morse code. Tried swapping out FP relay and PCM relay during failure with no improvement. Normally with KOEO, fuel pump will only run appx 1 second when key is turned on, unless cranking or running, but this er...
May 07, 2009