plzzzz come in
06-16-2009, 08:10 PM
#1
plzzzz come in
change my o2's ,change my sparklugs ,checkt my injector wireing ,and still the truck tends to stutter bad at 1/4 throttle, then i step on it WOT and it dosent studder anymore but it feels slow ,i have no idea wats wrong with it, i check my fuel pressure its at 50 idle and wen i put it in drive and give it 1/4 throttle so it can studder it goes to 53, i have dual walbros is that pressure about right ,CAN SOME ONE PLEASE HELP!!!!!! ME OUT IV BEEN TRYING TO MAKE IT WORK ALL DAY AND NOTHING , I DONT EVEN GET A CHECK ENGINE LIGHT OR ANYTHING I THINK IM GONNA BURN MY TRUCK 
06-16-2009, 09:03 PM
#3
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I had the same problem with my 2000 silverado it would do the same thing i tried everything and had no check engine light ended up taken to a dealership mechanic he said it was a knock sensor changed both of them and then it was fine
06-16-2009, 09:18 PM
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Fuel pressure seems to low to me...I have a single and it idles arounf 60-62 and at WOT goes to around 58...so IMO your fuel pressure is way to low.
