Not up to performance

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Not up to performance

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Not up to performance - 5/12/2008 4:30:31 PM

lilredc4

Posts: 15
Joined: 1/12/2008
Status: offline

Hi Guys: I am new to the forum (have just been reading alot) I have a 92 Lt1, 6 spd coupe with 33K miles on it. Since I purchased it in December I 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, and I have noticed a slight miss when in idle. I would like to know what you guys think should be my next step?

Post #: 1

RE: Not up to performance - 5/13/2008 6:43:36 AM

riley

Posts: 239
Joined: 9/5/2006
Status: offline

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.

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(in reply to lilredc4)

Post #: 2

RE: Not up to performance - 5/13/2008 11:38:03 PM

gcorpuz

Posts: 1
Joined: 6/26/2007
Status: offline

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.

(in reply to riley)

Post #: 3