Coolant, temp gage problem HELP!
#11
Would tearing the wiring harness apart be worthwhile to trace those 2 wires all the way back? I think its pretty unlikely that the wires themself are the problems though.
I guess its possible for air to be in the system. I just put a new cylinder head on and filled the system back up.
I guess its possible for air to be in the system. I just put a new cylinder head on and filled the system back up.
#12
How is the shotgun approach working for ya...replace without testing. Its your $65 plus programming costs. good luck with that.
If it was me, I would verify the wiring is ok first. The wiring is 15 years old. Its a 10 minute test.
If it was me, I would verify the wiring is ok first. The wiring is 15 years old. Its a 10 minute test.
Last edited by tech2; July 16th, 2012 at 5:55 AM.
#13
jumper the wires together at the switch, then key on. If that induces a po117 all the wiring and pcm is ok. If you can't induce a p0117 but have 5volts on the yellow wire the grd wire is open.
all the head gasket stuff...air in the system etc won't induce a p0118. 117/118 are all logic tests for the pcm and wiring.
all the head gasket stuff...air in the system etc won't induce a p0118. 117/118 are all logic tests for the pcm and wiring.
#14
I will test for 5 volts on the yellow wire with the key on tonight. What do you mean jump wires together at the switch? What switch? Sorry I am not following what you mean.
#17
CF Monarch
Well, I guess tech2 is correct. If you jumpered full voltage to the switch leg, and if it were a complete circuit, you should have pegged the temp guage. I'd first before tearing the wire harness apart, is to use an electrical cleaner, and spray the connections well.
#18
I'll tear into the wiring harness tomorrow night. Sounds like its more than likely the ecm though. Whats it take to fix that? If that doesnt work I am done with this damn car.