93 explorer fuel error codes
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93 explorer fuel error codes
I need badly!!!
Just finished testing. I'm getting these codes:
124 (M) TP voltage was higher than expected
543 (O) Fuel pump monitor circuit shows no power - Power / Fuel Pump Circuits
(M) (Service 556 code first if present) Fuel pump relay or battery power feed was open
556 (O,M) Fuel pump relay primary circuit fault
I switched out the primary relay for the fuel pump and it seemed better, but blew shortly after. Does anyone have an idea what is going on? Any help would be greatly appreciated!!
Just finished testing. I'm getting these codes:
124 (M) TP voltage was higher than expected
543 (O) Fuel pump monitor circuit shows no power - Power / Fuel Pump Circuits
(M) (Service 556 code first if present) Fuel pump relay or battery power feed was open
556 (O,M) Fuel pump relay primary circuit fault
I switched out the primary relay for the fuel pump and it seemed better, but blew shortly after. Does anyone have an idea what is going on? Any help would be greatly appreciated!!
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Yes, it drives normally up to about 25 mph, but heavy acceloration starts to choke it. I just changed the fuel filter along with a complete tune. No help. I did switch out the primary fuel pump relay and it seemed better for a moment, but blew again quickly.
Last edited by galaxian; Oct 21, 2003 at 08:31 AM.
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Galaxian, does your model have 2 fuel pumps (1 in tank, 1 frame mounted)? It sounds to me like the primary fuel pump has a short to ground in it. Check the wiring going to it; maybe a wire has chafed on the frame and caused a short. If the wiring is OK, the pump must be bad.
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