danruesch wrote:
I tried a new glow plug module and that didnt help. This weekend the weather was nice enough that I put a new glow plug harness in. While I was in there I put on Ohm meter on each plug and they all were around 1.1 - 1.5.
I used my scan tool to reset the computer but the code came back right away. Frustrated I drove it on a couple small errands that evening, but the next morning when I started it, the check engine went out and hasnt come back.
Uh ok...whatever.
Huh, I'm still working on P0672 #2 glow plug CEL as well. I've swapped the GP Relay, tested the resistance on the GP (1.1ohm), tested the PWM signal on the harness end to GP #2 and all is well. So the GP may be "broken lite" per WolverineFW in that it sorta works sometimes. Seems the CEL light stays off longer after reset sometimes ?? Also I see the PWM signal stays on to the GPs most likely until warm up like my dodge 5.9ltr.