ng8264723

So I cannot get my truck running. I have a build thread here and have asked in other threads but have not had much luck. So I thought break down into systems. How do I test my new COP's?

techrep

iTrader: (1)

What brand are they ? You can ohm test them..

BadFish523

You can ohm test them to see if they are completely bad. Or you can locate which cylinder is misfiring and swap a coil from a different cylinder and see if the misfire follows the coil or stays on the same cylinder.

4x4Fun

If you already have them installed on the truck, you can pull the fuel injector harness one at a time and see if the engine seems to want to die or works harder. When you pull it (don't have to pull it all the way off the prongs) you will know what I mean. This will identify the bad coil location if you are not getting an error. It could also be a spark plug. I had that in one cylinder and a bad COP in another. *UPDATE* and now I just re-read that you can't get your truck running. Never mind the first part, still might bad plugs. Did you change them recently? If you did, did you use Motorcraft SP515?

ng8264723

Everything was brand new! Coils/plugs/injectors/starter/alt/. The truck has only been moved in and out of the garage. When I first installed the motor it ran (idled) great. The first time I hit the key. I spoke with a bud who was going to help me datalog and when I went to start it to datalog it, it stopped running. It would not start.

BadFish523

What brand of plugs, and coils were used? If it died is there probably a CEL? If so whats the code?

techrep

iTrader: (1)

I'm still wondering how you pull a fuel injector connector to troubleshoot a bad COP..