SunlitComet
OBS Jedi-Do Good
it acting like it has an intermittent broken wire or the sender is really screwed up. do you have an ohmmeter or multi-meter around?
Odd surging issue now coolant in the oil
- Thread starter Cheesehead
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Cheesehead
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Yes I have both and a O-scope. I was thinking the same thing. I did pull a error code the other night that the TPS sensor has a bad 5volt reference. Which has started a massive upgrade to the grounding system.
Do I need to ground both heads?
Where is the ground point for the Alt suppose to be located?
Do I need to ground both heads?
Where is the ground point for the Alt suppose to be located?
Cheesehead
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Well Guys, I fixed my flaky fuel gauge and Oil pressure by swapping in a spare gauge cluster. I took the lense off the old cluster and if you try to spin the fuel or oil gauge with a flick of the finger it spins freely around in circles. There is completely no resistance.
Also if anyone ever asks in the future the Oil pressure gauge is suppose to go to Zero when there is no pressure and the key is switched on with no motor running.
Also if anyone ever asks in the future the Oil pressure gauge is suppose to go to Zero when there is no pressure and the key is switched on with no motor running.
SunlitComet
OBS Jedi-Do Good
do you still have the error code for tps? number please.
Cheesehead
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Error Code is completely gone and hasn't shown up since re grounding the truck
SunlitComet
OBS Jedi-Do Good
dam you.
Cheesehead
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Sun the error code was number 22. But I think i got an electrical gremlin still. Today we had some crazy rain and the truck was acting like it was starving of fuel when I was going up hills on the way to work.
SunlitComet
OBS Jedi-Do Good
check the firewall relay area for possible water intrusion as well as around the pcm in the dash assembly. check the grounds cleanliness too.
Cheesehead
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Update....
No water at all under the dash or around the relays. Pulled the air cleaner off to check the tbi for leaks around the pressure regulator and found nothing. But...I did notice it idling oddly so I pulled the ICM timing bypass wire just to check the base timing in case something came lose and the timing shifted, once it was into base timing I notice that both fuel injectors would cut out for less then a second in sync with each other and then return to running like nothing ever happened. Figured it might be the pick up in the dizzy and pulled the dizzy again....decided the dizzy had to much vertical slop in the shaft and replaced the dizzy, cap, rotor, ICM and still having the same problem.
I am pretty sure it is a busted wire some where just trying to narrow down the search instead of testing each and every wire back to the ECM because the truck ran like in never did for about 20 minutes last night before I parked it for the night and calling it fixed.
Anyone know what the ECM is all looking for in order to trigger the injectors. Or Idea's of what is causing this
No water at all under the dash or around the relays. Pulled the air cleaner off to check the tbi for leaks around the pressure regulator and found nothing. But...I did notice it idling oddly so I pulled the ICM timing bypass wire just to check the base timing in case something came lose and the timing shifted, once it was into base timing I notice that both fuel injectors would cut out for less then a second in sync with each other and then return to running like nothing ever happened. Figured it might be the pick up in the dizzy and pulled the dizzy again....decided the dizzy had to much vertical slop in the shaft and replaced the dizzy, cap, rotor, ICM and still having the same problem.
I am pretty sure it is a busted wire some where just trying to narrow down the search instead of testing each and every wire back to the ECM because the truck ran like in never did for about 20 minutes last night before I parked it for the night and calling it fixed.
Anyone know what the ECM is all looking for in order to trigger the injectors. Or Idea's of what is causing this
SunlitComet
OBS Jedi-Do Good
the ignition control module sends data to the ecm to to evaluate the crank position and rpm and work together to adjust timing so i would concentrate on those wires between them and the icm as a source of the problem.
