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blue02duramax 11-05-2009, 10:39 AM I just clickd over 80,000 mi. on my 02 and for the past couple of months, when the engine is not warmed up, the truck sitting and a stop light will surge and sound like i have a big loapy cam. Could this b the fuel pressure reg goin out, or is it a different problem. I just had new injectors put in 5,000 mi. ago. Thanks blue02duramax 11-24-2009, 05:25 PM any help?? k9duramax 11-24-2009, 06:23 PM It could be FPR, I have heard people that have run some 2 cycle through it and it clears them up for a bit- may be a cheap alternative for you to see if it helps!!!! chevyman33 11-24-2009, 08:28 PM Mine does the same thing. It bothered me at first but I dont think it is that big of a problem. moss022 11-24-2009, 08:29 PM fpr WI Huck 11-24-2009, 08:46 PM Here it is, http://www.hdiesel.com/product.asp?id=139 kbbingham 11-25-2009, 10:38 AM If i put my 125hp tune in, my truck surges. drop the tune to a 90hp and it goes away. Might want to play around with your tunes. blue02duramax 11-25-2009, 11:54 AM Thanks for the help, i have already tried the 2 stroke oil and nothin changed. Im jus gonna go buy a fpr and go from there. moss022 11-25-2009, 09:02 PM If i put my 125hp tune in, my truck surges. drop the tune to a 90hp and it goes away. Might want to play around with your tunes. did you think your tunes might make it do that? kbbingham 11-26-2009, 02:34 AM Yes. As soon as i lower it. the surge goes away. there was a thread about it and others had the same problem with the quadzilla. Not sure if others tunes/chips do this as well. Or what factors will cause the surging. Fuel pressure and injectors are fine in my trcuk. I'll see if I can find it. moss022 11-26-2009, 10:26 AM thats what i mean. the programs will make it do that. if it does it on a stock tune, its worn out. they still work, i just dont think on a high performance level though. i used to have a 215 quad box, they made it do it just as bad. chevyman33 11-26-2009, 11:13 AM Yeah mine does it the same on 90 or 135. Just when its cold though. Dmaxkid19 11-26-2009, 11:41 AM i run 150+ tunes on my truck, no surging. could be the tune you have. it may be commanding to much rail pressure at idle. blue02duramax you may need a lift pump to keep the fuel goin to the cp3. or your cp3 could be getting week. idk.. just throwing ideas out, correct me if im wrong. moss022 11-26-2009, 12:21 PM at idle there really isnt any demand. fpr is wore out Dmaxkid19 11-27-2009, 10:01 AM i ment to stop the surging. or just switch out the tunes?? | ||