9165pt0

Hey guys i need some advice, i dont know whats wrong with my car. When i fire it up it just dies out. Even when im ata light I have to keep it revved up so it wont die out. Ive had underdrive pulleys on it and thought maybe the altnernater was going bad. I had the alternater checked and its fine, so i put the stock pulley back on, thinking it would work. Now its still dying out the same way, i have no idea what to check?

Texas5.0

reset the base idle.

9165pt0

How would i do that?
I know once i put on some gt40 heads and intake we had to set the idle up higher for some reason.

mjr46

you need to check for vaccum leaks and try running a koeo/koer test

9165pt0

ok will do. how do i reset the base idle? and where is the iac so i can clean that to? any pics

9165pt0

ok i tried to clean it out as much as i could (dont have any carb cleaner till the mornin) and it still dies out. Then i found my old throttle body andiac which used to work fine. So i put that iac on and it still dies out right away. The only way it stays on is if im on the throttle...I will get some carb cleaner in the morning and really clean it and try again.

how do i do dis koer test?

9165pt0

ok guys i got some throttle body/intake cleaner and cleaned the iac and throttle body. Now it dies even faster, once i fire it up and try to rev it to keep it on it just lags and doesnt even rev. Please help, what should i look at?

9165pt0

ok guys i had to put more gas in it and it fired up. but the it still struggles and dies at idle unless i rev it. and when the idle drops really low and i rev it, it seems to misfire and then rev up. the iac has been cleaned and changed, i have checked for vaccum leaks. What else could it be?

Texas5.0

I am probably way off but have you reset the base idle?

9165pt0

not yet, i read on here to reset base idle and check tps voltage but i wont have a mutlimete untill tomorrow. could that be it?