1989 F150 5.8L, dual tanks
09-07-2014, 08:31 PM
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1989 F150 5.8L, dual tanks
Truck will not start. I have replaced the fuel pump relay. I have no power to the injectors and the fuel pumps aren't running. I can get the high pressure pump to run by jumpering #3 and #4 on the fuel pump relay. Am showing no voltage at #2 on both fpr and EEC relay. I also cannot get the pumps to run by grounding #6 at the self-test port. No voltage at the red wire at the injectors. Any ideas as to what to check next? I'm leaning towards replacing the computer but still not real sure........
