Turn ac on= car wont idle

[boost97gst]

Ok, so i found out first off that my tps wasnt quite right and adjusted it so the idle switch went to 1 in link. It was off just a hair so i was simulating idle sw.
Got that ironed out.
Go and turn my ac on expecting it to kick rpms up to compensate, and it does the same thing and stumbles and dies!
(edited out)
edit: after i cycled power the acrequest works. it changes like its supposed to. So does ac clutch.
My ISC position on normal idle at 1k rpm is 80 though, you think my problem lies there??

 

[lilsam]

secret kill switch??

 

[boost97gst]

i know right? , but no, its working fine, just needed to be power cycled. Sometimes you need to disconnect and reconnect on link, atleast i do when i add some new value.
It doesnt kick rpms up still though. And ISC being 80 is awfully high id think.
It compensates for electrical load at idle just fine. Like the fans, just the ac is too muych. And the really fun part is the previous owner totally stripped the head of the BISS. Now i have to remove the TB and take everything apart.....again

 

[Coalbey]

id try cleaning the throttlebody out with some carb cleaner, had the same issue with my eclipse

 

[boost97gst]

Yup, i will be doing that for sure. The biss has got to be out of whack though. I think/hope thats the problem. Ive heard ISC is supposed to be around 30. But there are variables. My cams are not stock, FMIC, and the fact my idle is set to 1000 through link. Trial and error i guess

 

[bcjjones]

Long shot but I has a N/T once that would die with the a/c on. Ended up being bad compression due to a burnt valve.

 

[DSM1G90]

Before you start fiddling with the BISS screw, reset the ISC unit, for it's the ISC that controlls the idle when AC comes on.

If the ISC unit can't be reset, do the test posted in VFAQ to see if the ISC is any good or not.

 

[boost97gst]

Before you start fiddling with the BISS screw, reset the ISC unit, for it's the ISC that controlls the idle when AC comes on.

If the ISC unit can't be reset, do the test posted in VFAQ to see if the ISC is any good or not.

Ok, i tested ISC. All at 30 ohms. Looks good. So i went to look at the BISS screw again in good daylight. The PO must have packed it full of jbweld or something. i mean, cmon dude. WTF??? I guess the TB is coming off next time i get free time to mess with it. Other than that it idles great, got a decent tune so im not too stressed. And its a sunday car. Gotta get my landscaping done before my neighbors lynch me!

Long shot but I has a N/T once that would die with the a/c on. Ended up being bad compression due to a burnt valve.

Thats funny dude. . Im certain its not a burnt valve ..... hahaha good one tho