2003 Ford F-250 7.3 liter faulting dtc p1316 but the engine is running fine I clear the code and it comes back as soon as I start the truck any help would be appreciated.
klhanson, thanks for the reply. So just one question the engine runs really smooth no noticeable miss is that possible on 7 cylinders thanks for your help this thing is driving me crazy
Ok so I replaced the uvch today cleared the codes started the engine and the code p1316 came back ran the buzz test faulted p1277 high to low side open cylinder 7 same as before. Could it be the IDM?
Thanks fo any help Larry
I agree completely. First check the resistance across each injector. Should be around 2-5 ohms, IIRC. You can do that from outside the VC. The pin to Injector 7 will be two pins back from the center pin on the connector. The center pin is common, and the location to each injector corresponds with it's position on the engine.Hi did the truck run better or the same. I would move that injector to cylinder 5 and put five in 7 and retest if it fallows the injector its the injector if it does not then I look at the idm. You could also check resistance with a multimeter on the injector coil on the other injector coils and compare to 7 be for you swap them.