Hi i'm wondering if anyone has a spare laying around.

Thank you

Nigel

1g or 2g (not sure if there is a difference)

no difference. I do have a couple kicking around. The question is do you need one, or are you looking to acquire a spare? I keep a spare in my car because I've had mine crap out and the poor gal wouldn't even idle.

No difference brother! From what I know anyways

I'm almost certain I need one, maybe a vacuum leak but i'm pretty sure its the isc... It starts to surge after the car has been idling for a few minutes bit once I drive the car it is not as bad...

Haha, I have the exact same issue.
Pretty sure it's my ISC too, especially because I am on SD.

I used to have similar issues. The idle surging was caused by the ISC going haywire. However, the ISC seemed to be behaving that way because of the vacuum leaks nearby (TB shaft, crack in the IM). One I fixed the leaks, the ISC worked perfectly again.

I am also on SD.

ISCs get blamed kinda quickly. I would do a BLT first.

Sorry to muck up your thread.

This can happen when too much air gets past the closed throttle plate and might be fixed by resetting the BISS.

If it's a 1G you also need to make sure that the closed throttle position sensor (idle switch) is functioning properly and screwed in the correct distance.
If it's a 2G you should check the TPS for the same function.

It can be simulated with Link on a 1G, in case your connector decides to break like mine did. But then you need to make sure your TPS is lined up properly

I guess its already been offered, but I too have an ISC kicking around.

The ISC is very simple to check. Look and see whether or not you get resistance across the 4 coils.

1---2---3
4---5---6

You want to check resistance between 1-2, 2-3, 4-5, and then 5-6. If any of those are open or below 28ohm (might be wrong on that value), then that coil is bad and the ISC is junk.

Or, just watch this.

Thanks a lot for all the info, i'm going to start by checking for leaks and work my way down the list.. I'll post as to how things go and if I actually need the isc

Thank you again!!!

we got you bro

Yep but I really wanted to highlight that if it's screwed in too far, it will hold the throttle plate open, causing idle surge regardless of the sensor function.

Oh and I should add that a dirty TB can cause it to stick open too.

Does anyone have the MUT Scanner(mb991502) to set base idle with the BISS while installing a new iSC?

If anyone is looking for an ISC, contact Stephen at S&M Imports. Bought one from him last year for about $15 shipped

Take a look at VFAQ, should help you. You don't need that scanner you can use any logger or a volt meter.

15?! That's crazy cheap!!! nice!

Thanks a lot for the feedback and advice gang!!! Will be working on her Sunday to resolve this issue.