Thread: check engine
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Old 07-23-2008, 02:38 PM   eBay Motors   #10 (permalink)
TYREBOYZ_DEMAXIN
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Join Date: Feb 2007
Location: Barnesville OH
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sheriff,the P0403 is cause by having a straight pipe on it so the only way to fix that is buying the fingerstick from Kennedy Diesel or most programmers will disable the EGR..

i would have the Fuel Regulator or the Fuel Rail Valve Checked to make sure it isn't weak because if it is then that could easily be the problem and that should be under warranty.
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05 LLY Chevy LS E/C L/B DRW my older brothers truck now
2006 LBZ GMC SLE C/C S/B,sold the truck to my dad for a business truck
My Truck now,1987 Chevy 2500 350 tweaked,6" SuperLift,350 V8 bored 60 over,Elderbrock headers Cam and Titanium Rockers,750 Twin Pumped Holley Carb and some other goodies.crank dynos over 400HP.
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