Chevy/GMC Duramax 01-04 LB7 Discussion of Chevy and GMC Trucks with LB7 Duramax Turbo Diesel Engines

preassure regultor on fuel rail

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Old 05-16-2011, 03:15 PM
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Default preassure regultor on fuel rail

was told i need an new preassure regulator on the fuel rail didnt know if there are after market ones that are better or i should go with stock or what i do have a tunner if that makes any different thanks
 
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Old 05-17-2011, 10:46 PM
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as far as I know there are no aftermarket FPR for the CP3
 
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Old 05-18-2011, 12:00 AM
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You could always upgrade the whole CP3 to a LBZ CP3....
 
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Old 06-05-2011, 04:36 PM
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I was told I needed a fpr myself after changing the whole cp3 out I found a wire broke on a wiring harness going to something on the fuel rail. After I fixed this wire (rigged it up) it runs great. Probably my trouble from the start but I have a new pump now. Check those wiring harness's good. My truck was weak and losing power like crazy.
 
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