Change fuel pompe still dont work 4x4 5.7
There are times a failed fuel pump may cause a blown ECM fuse. Usually ECM B or ECM / PCM 2 fuse will be blown. There are occasions the fuel pump relay may be bad. I have on Occasion found the ECM circuit failed from the PCM. Also check and make sure the security system has not disabled the fuel system. If this is the case a problem may exist in the ignition / security PASS or VATS system.
Check fuel pump relay.
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