conquest ic on a dsm and bad idle

[ktg-dsm]

I have a 91 gsx and the idle bounces from 1500 to 2000 rpms any STRONG ideas on what it could be? Have been told it is a vacuum leak and the ECU. I also have a conquest front mount and would like to know if there is anywhere that make IC piping for it or if I should just sell it and get a different one?

 

[ivanr4g63]

does your iddle stays that way all the time, or eventually goes down?

maybe you need to simply adjust the screw
http://www.vfaq.com/mods/BISS-1G.html
or do a good throtle body cleaning, with any TB cleaner from the autoparts store.
go from there.

There's no company that makes piping for a starquest intercooler, but its not hard to do your own. Here's some help with your FMIC
http://www.vfaq.com/mods/StarionIC.html
http://www.vfaq.com/mods/Starquest.html
http://www.vfaq.com/mods/icpage.html

 

[kyle h.]

easy thing to do is make a leak tester. im sure you'll find a leak somewhere.

also check your ISC motor, it's easy to test too (vfaq.com)

make sure there is no air in your cooling system.

keep trying, if you have my luck, none of those will fix it.

 

[ktg-dsm]

does it most of the time but sometimes runs fine.