Engine Performance problem
2004 Ford F250 V8 Four Wheel Drive Automatic 74144 miles
Hard start problem had been occurring, changed oil, and fuel filters, still no help. Finally a no start condition occurred. Towed in shop they diagnosed the problem as a code they retrieved as: Fuel Injector control module, injector control pressure switch, and a 3 way connector. Once completed we still had problems with a hard start. Checked the batteries and found one battery completly dead and the other at 1/2 life.
Question: Can a battery issue cause these codes and tech. To do what he did when it is only a battery issue? Can he have mis-diag. Problem were we did not need these parts?
If its cranking over and will not start you can try doing below to determine if its a fuel or spark problem.
Get a helper disconnect a sparkplug wire or 2 and ground it to the engine atleast 3/16 away from ground-have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, If you can hear the fuel pump come On- check the fuel pressure with a fuel pressure tester designed for your fuel system to rule out the fuel filter/fuel pick-up strainer/fuel pump/pressure regulator and also listen to the injector/s are they pulsing or hook up a noid light and see if it flashing, If you don't hear the fuel pump, check the fuel pump fuse and fuel pump relay-Depends on what type ignition system is yours, No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs, coil's resistances, distributor pick-up coil, ignition control module, camshaft and crankshaft position sensors and computer Note: If it doesn't apply to your vehicle disregard it meaning if it doesn't come with one ignore it and continue testing