Car idling weird

[Needsoles]

when my car idles the rpms jump up and down and sometimes it will stall. Any help guys thanks?

 

[BringBackDSM]

Something could be wrong with your fiav. I know this because mine did the same thing until I blocked it off. People say not to do it if you live in too cold of an area, but it commonly gets around 0 where I live and I have no problems. You also may want to check your isc and tps.

Im not sure who sells the fiav block off plates but there not hard to find. It might be roadraceenginering.

 

[cjridert1]

Terry's Talon Troubleshooting Tips #3 - Fast Idle (aka. Idle Surge)

This is a good site to read over that covers all the possible problems (I had to go thru the whole thing).

Here is a site to test the ISC values: http://www.geocities.com/motorcity/downs/7678/dsmtests.html

 

[zero97tsi]

It could also be a simple vacuum leak.

 

[Needsoles]

I checked and i did have a vacuum leak. thanks

 

[tbonitz301]

Check your ISC its located on the bottom of the TB near the firewall. Unplug it and see if you notice a difference. pm me if you want to know how to test it. hope that helps

 

[Needsoles]

i found a vacuum leak and fixed it but it's still idling rough