2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.
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Old 02-11-06, 03:16 AM
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tunnel vison

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if you figure out problem, i give you a paypal dollar

what up fellas, heres the deal

my car is a 90 vert running an s4 trans. ran perfect until the snycros went out. replaced the trans with a s5 gxl trans. since then start up hasnt been holding 3k rpm. and during warm up the cold start idle is bouncing like it has a vacum leak.

question? do wires on trans affect the running process?
Old 02-11-06, 03:19 AM
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Sounds to me like your neutral switch isn't wired properly. This switch will disable the 3K rpm cold start crap if the car isn't in neutral. I would suggest checking this/fixing it, and then once the car is fully warmed up, adjust your throttle position sensor (or simply verify it's set properly), if it is and you've still got a bouncey idle (once fully warm, or it won't idle normally at 750 rpm), start looking for vacuum leaks.
Old 02-11-06, 03:37 AM
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not having the 3k cold start is a bad thing, but I understand the point behind this, just do as SonicRat said. lsx257, do you live in the eastbay, saw a black vert with s5 tails getting off of 238 the other week.
Old 02-11-06, 04:27 AM
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tunnel vison

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ill double check my wire connections b/c one of them came with out a connector and had to be butconnected. it seems like a neutral safety issue b/c when i push the clutch in on a warm up the idle balances out.

thanks sonic

i dont think i drove 238 for a while unless going out to altamont speedway. but my tails are led that look like a lowered semi truck.
Old 02-11-06, 08:50 AM
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Arrow

First of all the cold start thing is very very bad and it would be best to remove it as soon as possible. Why would anyone think that rvving a cold engine to 3k while injecting corrosive fluid is a good idea.
Second of all going by his sig he doesnt even have a rotary in there so the cold start thing is irrelivant. But as for the answer to the actual question, I would follow Sonics advice.
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