I have a lil rev problem. At idle my 91 laser revs itself slightly and then drops. Its a pretty quick rev and then drop back down and it does it constantly at idle. Id appreciate it if someone could tell me whats wrong and how to fix it.
Thanks

travis's old laser used to do that all the time... ran like a champ though...

vfaqs shouldhave something on it.

It's called idle surge...see information on my site:

http://www.crebotech.com

Let me know if you have any questions.

i now own this car... and have the same issue. if you disconnect the ISC the idle should stay constant. mine just went up to a steady 2 grand idle. i would either buy a different ISC from a parts car or send it to crebo tech and have it rebuilt.

My '91 Talon does it, and sometimes even ends up dying after sitting at a stoplight awhile. I tested the ISC and it was 0 ohms (zero) across all points.. Guess I need another??

Yes, you need a different ISC even if only one pair of pins measures anything different than 28-33 ohms.

And actually I have rebuilt units here that we send out when you place an order. Then you send your old unit in for a core refund. If anyone places an order let me know your from DSMcentral and I'll give you an extra $5 credit for your core.

Thanks a bunch ill end up ordering one here in about a week