2006 5.4 f150 weak pcm coil ground signal. Where is the problem?
06-19-2016, 01:39 AM
#1
2006 5.4 f150 weak pcm coil ground signal. Where is the problem?
I thought it was fuel. I added a fuel pressure gauge by purchasing a nitours adapter and I know i have good fuel pressure 60 or so. I then noided the injectors. i had a nice strong light. I checked the coild and they flashed but were weak. I had my friend who is a great mechanic loook at it today. We then tested the hot feed and it was 12 volts. the weakness is in the ground from the PCM. It is very weak. I am only getting a few volts b/c of the weak ground. Any ideas?
06-19-2016, 10:33 AM
#2
Dang. I knew my truck would have an issue no one could figure out!. It has to be the ground too. At least I could feed it with another 12 volt source but the ground is thr trigger.
06-21-2016, 11:25 AM
#4
