Im having a problem with my idle, seems like my IAC isnt working properly.
The car idles rough, never consitant at idle and takes some time to start as well.
I dissconnected the IAC with the car running, didnt make any difference, I would think it would flat the idle, is that normal?
Is there a voltage setting I can check on the IAC or somehow I can test it?

 

Look for the TPS/IAC reset prodedure in the tech section of this site. You need to do both at the same time.

 

Just cruising at idle feels like the car is surging, like jumps back and forth, struggles, is very annoying.

 

Have you tested your injectore ressistance when they are hot and cold? My car had a problem similar to this when 5 of my injectores went south.

 

IAC was bad, replaced today runs better however I need to adjust my timing, still outta wack.
Thanks
I think I will look into some injectors soon as well.

 

I dont get it, ran the car tonite still has the surge like problem.
After installing it seemed better but now its still acting up, this is getting anoying and seems like anyone who checks it cant figure it out.
Im lost, could it be my ecm prom or injectors? tired of this ****.

 

What year is your car again?? This is a common issue with the older TPI cars with the crappy Multec injectors...

 

Its an 87 GTA 350 TPI 22lbs injectors with the cold start injector, auto .

 

Now its 350 with the HSR intake, sorry it didnt post the edit.