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Thread: LS2 running rough
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01-27-2011 #1
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- Jan 2011
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LS2 running rough
Buddy of mine just completed his 69 camaro LS 2 swap. first dozen or so trips around town the thing ran like a champ. The other day he got on it pretty good (showin off) well a few moments later the car started bucking, and running really crappy. Pulled over still acting like it was going to die, turned it off, turned it back on ran fine, then a few seconds later started running like crap again.
unplugged the battery and the thing ran great again. drove it home parked. next day went out started it, ran like crap after about 3 min it smoothed out and for the last couple days has ran perfectly.
Know he doesnt now if there is a demon running around that he needs to worry about, not nowing when it will pop up again.
Anybody have anything like that happen to you? Mechanic plugged into the computer and it didnt show anything wrong.
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01-27-2011 #2
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- Dec 2010
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- St Louis
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Fuel pickup/folter clog?
01-28-2011 #3
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- Nov 2006
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- Mountain Springs, Texas
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I had a similar problem. It was due to low fuel pressure caused by a split fuel hose in the tank. Autozone will lend you a fuel pressure gauge.
1969 Camaro - LSA 6L90E AME sub/IRS
1957 Buick Estate Wagon
1959 El Camino - Ironworks frame
1956 Cameo - full C5 suspension/drivetrain
1959 Apache Fleetside
01-28-2011 #4
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Also could be a loose/bad ground somewhere. Computer gets all whacked out without a good ground. Scott
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