If I remmeber right the idm doesn't do anything until the rpms register.
So the key issue is definitely that the tach doesn't show any rpms when cranking. I know it sounds crazy, but when I had an issue like this, I had a buddy wave a wrench in front of the cps while it was connected but not mounted. You can see the tach move a smidge if they really wave it. Helped save some time when I had like three different CPSs to sort between. |
Originally Posted by Edgethis
(Post 21068795)
If I remmeber right the idm doesn't do anything until the rpms register.
So the key issue is definitely that the tach doesn't show any rpms when cranking. I know it sounds crazy, but when I had an issue like this, I had a buddy wave a wrench in front of the cps while it was connected but not mounted. You can see the tach move a smidge if they really wave it. Helped save some time when I had like three different CPSs to sort between. |
Yes, the cps is really just a hall effect sensor which uses magnets more or less. The cps counts the teeth on a gear on the crankshaft and thats where it gets the rpms.
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Here's a quick dumb question...The wires to the IPR...they are both the same?... Not connected but it doesn't matter which wire is which...I can't reverse them? right?
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I see a an ICP code now...LOW or out of range...That may have thrown when I tried starting while unplugged?
I thought an ICP would make a rough run and not a no start? |
I checked the oil in the HPOP...it is 6.5" from the top...(took out the 3/16 Allen/Hex plug and stuck with metal dowel). Can a LPOP drop dead in an instant?
It won't crank more than 120-130 RPM so I plugged in the heater. I am getting more and more discouraged |
Refill hpop resivour and see if it will fire
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Originally Posted by fordman67
(Post 21070588)
Refill hpop resivour and see if it will fire
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Anyone close? Pop known stuff on it.
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Originally Posted by Hit Man X
(Post 21070652)
Anyone close? Pop known stuff on it.
I found one online for about $560...sheesh...I should atleast bring it to work and see if anyone can hear water in it...Texas isn't too far is it?....J/K...I'm really not connected as I use to be |
I think I know where my spare PCM and IDM are at, can send.
Will not be back till mid January. |
That's REALLY kind man...I appreciate your trust but I'll try to find another way...someone closer or listen for the water inside...I do thank you just the same...very kind!
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I saw an IPR comment.
You pulled the harness from the fuel bowl and tested the IPR wires? Also if the plug is bad, its the same as an injector harness plug. Diesel fuel will eat the rubber inside that IPR plug and can cause it to short. I ended up fixing mine long time ago with some shrink tubing and RTV. But the only wire left on my fuel bowl harness is the IPR, the rest were stripped off. I duno if the LPOP can supply the hpop res if the HPOP fast enough bypass is stuck open. And the IPR is what regulates a lot of that. That's more of a joey question. |
Originally Posted by Talyn
(Post 21070842)
I saw an IPR comment.
You pulled the harness from the fuel bowl and tested the IPR wires? Also if the plug is bad, its the same as an injector harness plug. Diesel fuel will eat the rubber inside that IPR plug and can cause it to short. I ended up fixing mine long time ago with some shrink tubing and RTV. But the only wire left on my fuel bowl harness is the IPR, the rest were stripped off. I duno if the LPOP can supply the hpop res if the HPOP fast enough bypass is stuck open. And the IPR is what regulates a lot of that. That's more of a joey question. There used to be a no start flow chart. Crap, I don't have it. I know I "had" it. |
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