Not up to performance
#1
Not up to performance
Hi Guys: I am new to the forum (have just been reading alot) I have a 92 Lt1, 6 spdcoupe with 33K miles on it. SinceI purchased it in DecemberI have changed the spark plugs, fuel filter, and replaced the intake manifold gasket. It seems to run great with just round town driving, but when you ask it to perform it seems like it wants to lay down on you at high RPM, starts missing or just sputtering,andI have noticed a slight miss when in idle. I would like to know what you guys think should be my next step?
#2
RE: Not up to performance
I'm familiar with the C4 but my first guess would be fuel delivery. You've already replaced the fuel filter (the first thing that I would have done) but have you checked the fuel pressure? After that I'd look at the injectors.
#3
RE: Not up to performance
hey, i had the same problem on a 95 LT1 and changed the exact same things you did turned out to be the coil wire. Change the plug and coil wires before changing anything else thats a lot more expensive. still have the car and the new c6 ls2, love them chevy power. let me know.
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