lt1 guru needed
Thread Starter
Teching In
Joined: Dec 2008
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lt1 guru needed I have a 93 z28 with a stutter on 1/2 to 3/4 acceleration. I have put new plugs, new wires, new coil, new icm, an new fuel filter. I had the car tuned about a month before it started an the guy said my fuel pump was weak would that cause the problem im describing? Any suggestion would be great
Yeah just do the fuel pump, it doesent really sound right, but iv seen pumps do some wacky ****. The only other thing i can think of is that you might have a bad injector, but i think they would have seen that while tuning because one bank would go lean.
Have you done a pressure test yet? You need to tape the guage to the windshield and go for a spin and wach the pressure.
Have you done a pressure test yet? You need to tape the guage to the windshield and go for a spin and wach the pressure.
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Joined: Apr 2008
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From: Born/Raised North East, MD Lived in VA, NC, MI Back in Yorktown, Va
has anyone thought it might be the TPS??? maybe it has a weak link somewhere in the throttle range? i wouldnt say fuel pump cause ive went through 4 pumps between my 6 camaros and they either worked or didnt there was no in between just my two pennies
I have a similar issue between 1500 - 2000 RPM once the car heats up. It runs perfect until it gets hot enough for the fan to kick in. No codes what so ever.
It's been like that for a while, but it also started doing this about a month after a new ICM/Coil. I have another ICM to throw in there, just haven't had the time.
It's been like that for a while, but it also started doing this about a month after a new ICM/Coil. I have another ICM to throw in there, just haven't had the time.
Thread Starter
Teching In
Joined: Dec 2008
Posts: 9
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Found the problem burnt wire on number seven cylinder hidden by the heat rap i put on it dont know how it burned threw it but thanks for all the input guys. Anyone have any suggestions on how to keep from buring every wire set i put on i have headers an i tried those slip on shields.
Joined: Apr 2008
Posts: 1,169
Likes: 1
From: Born/Raised North East, MD Lived in VA, NC, MI Back in Yorktown, Va
there should be a piece of metal the runs right underneath the valve cover. thats what i always ran my #7 wire above. and i didnt run my smog pump. so i wired tied all the wires to one of the holes where the pump mounted lol thats all i would do i tie the wires back away from the headers.
