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TNRGreene

Kicked to the Curb
Sep 2, 2006
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Bradenton, Florida
A guy calls me with some issues. Kept getting a low fuel rail pressure code. Someone advised him to get a new CP3 & put it on so he did. All he has is a Predator. When it runs with the reg unplugged it runs like a 12valve But as soon as he plugs it in it codes & dies. It is an LLY & he installed an LBZ pump & regulator...any clues? BTW the person that advised him can not be gotten ahold of & he's a member here also. & now this (me) retard gets the call :D. This guy is nice, took some advice & is now stuck. I'm trying to help him out. I could understand the weird idle with the lbz reg but not the dieing issue
 

JOHNBOY

< Rocking the Big Single!
Aug 30, 2006
2,159
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Saegertown, Pa
Any chance he piniched the harness removing and installing? If it will run unplugged then die when plugged in I would guess electrical.
 

TNRGreene

Kicked to the Curb
Sep 2, 2006
2,911
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Bradenton, Florida
All of the above was over the phone. I saw it in real life. 26107 @ idle with reg unplugged, plug it in it dies a slow death. I have not seen this before. Brand new LBZ pump & reg. All wires look ok, all hoses correct, stock tune :eek: He gonna borrow one on my regulators & try that next. This is baffling. As soon as we figure it out I'll post an update. Keeps setting a P0642 code when it's plugged in
 

Kat

Wicked Witch of the West
Aug 2, 2006
17,899
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Norco, CA
Todd check the pins on the FPR or the CP3. Maybe they are bent a little like when people where having problems plugging in harness boxes?
 

TNRGreene

Kicked to the Curb
Sep 2, 2006
2,911
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Bradenton, Florida
Any chance he piniched the harness removing and installing? If it will run unplugged then die when plugged in I would guess electrical.

Ding, Ding, Ding...We have a winner. harness was pinched down pretty far. I did not wrench on it because of my hand but he looked all day for them but what brought our attention was no oil pressure :eek:
 
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