Missing bad and lost power
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Joined: Jan 2012
Posts: 11,132
Likes: 3
From: Southern West Virginia
At what point in this sequence did you try the other IDM? I am wondering if you have two issues that were coinciding and masking eachother. I was thinking you said that either the IPR or the ICP was replaced and helped with part of the problem. I'm wondering if that was before or after the IDM was swapped. You might try installing the IDM (bolting it to the fender) and see if that makes a difference. If the ground in the harness is so-so having it grounded to the fender could help.
Lead Driver
Joined: Oct 2010
Posts: 5,132
Likes: 45
From: Columbus, Oh
I'm pretty sure my injectors are bad and that's what's causing my eye burning smoke at startup. We shall see once I get Mikes injectors if it clears it up. I've got all new GP's, harness, VCG, GPR etc...
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Joined: Aug 2006
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Its definitely unburned fuel . I had that when my IPR was sticky & ready to crap out (poor atomization of the fuel). I'm still pondering the IPR DC% at 19 when cold ...What I get out of this is the the ICP sensor is reporting more ICP than is needed ,but the IPR is still being commanded to stay closed longer . Seems like a mis communication between The PCM & the ICP sensor .Or its not using input from the TPS & EOT sensor at cold idle
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Joined: Jan 2012
Posts: 11,132
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From: Southern West Virginia
I probably should have done this 20 pages ago, but I just pulled my IDM out of the truck and gave it the shake test, and it's got a lot of water in it. So now I'm back to thinking this is two separate issues. I put the IDM from my parts truck in and started the truck. It doesn't seem to smoke as bad and it revs a lot smoother, but it has cooled off a lot since I've been home. It does still idle a little rough and surges. I just came in and ate dinner, now I'm going out to take the truck for a drive. I'll be back on here in a little while.
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Joined: Jan 2012
Posts: 11,132
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From: Southern West Virginia
Still has the same idle problem, but I'm hoping the water in the IDM was the cause of the one bank shutting down. I put the PCM from Tyler's first truck in it, it did romp at start up, but after that, same rough idle. Maybe I should pull the injectors on the pass. side, check/replace the o-rings and order an ICP sensor. That should just about cover everything except bad injectors and HPOP.
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Thread Starter
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Joined: Jan 2012
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From: Southern West Virginia
Post Fiend
Joined: Dec 2010
Posts: 10,121
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From: Orrville, Ohio
Hopefully that cured the shutting down. The romp at startup is one thing, the thing dying out on you is another thing entirely... Let me know if you want to try a different ICP. I still have that one we talked about and I'd be more than happy to send it to you if you wanted to try it to see if it would cure the problem. I'll be fair with you too if you want to keep it.
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Hotshot
Joined: Jan 2012
Posts: 11,132
Likes: 3
From: Southern West Virginia
Hopefully that cured the shutting down. The romp at startup is one thing, the thing dying out on you is another thing entirely... Let me know if you want to try a different ICP. I still have that one we talked about and I'd be more than happy to send it to you if you wanted to try it to see if it would cure the problem. I'll be fair with you too if you want to keep it.
Darin, let's see what Nate says, I may just buy his if it's good. I really appreciate the offer though. You know I'd do the same for you guys.