Can't Win

[shurlock]

Yes spare parts you are definitely correct on that I replaced both camshaft position sensors for s**** and giggles when It started misfiring. I have a commercial account at Advanced Auto I get them for like $10. I had another friend with this same engine that had his cam phasers fail and that was quite a mission to do. going to check wire harness for shorts before I ordered Used ecm don't really feel like having to pay to reprogram chip Keys.

[spareparts]

pot an ohm meter on each injector

[shurlock]

will do and post reply when I get a chance

[shurlock]

OK had a little time this afternoon to ohm things out. all injectors 12.2 ohms and all plugs from harness 1.9 M ohms.
with key in on position i have 12 volts at all plugs from harness. SO ECM?

[shurlock]

hello no answers no suggestions anyone

[spareparts]

that's are far as i know, I'm not that familiar with the Ford trucks, I was just going thru basic diagnosis that I would use on any engine. I guess the next thing is to check the harness, see if the injector harness terminates to a plug that goes to the main harness. The injectors fire using a ground pulse from the ECM, so check the input wire to each injector thru the harness. See if you can find a wiring diagram on line and do a pin out resistance check from the ECM to teh injector connection. You may need to get a long jumper wire to extend you reach with the Ohm meter. It does sound like a computer taking a crap on you. Try letting the engine run, then tap on the computer with a screw driver handle and see if it changes the way the engine runs, if it does, that's a sure sign the ECM is bad

[shurlock]

OK sounds good