i start my car ( 1994 fd3s) idle is good car reaches regular temps still good but after car idleling at normal runnig temps for about 10 mins it starts to slowly idle down untill the car shuts off...

from regular idle around 800 its takes about 30 seconds to idle down to 0...

car idleld fine for two years with no problems then out of no where it started doing this.....

mods
pfc
t04z single turbo
greddy front mount ic
greddy charge pipe
greddy type rs bov
no ac
no p/s
runnig 7psi car not fully tunned yet.

ran the car like this for two years...never had a problem.

 

clutch switch?

 

you think that would have something to do with my idle? idk

 

Dunno about that? When mine died it only did it when the car would go from in gear to neutral like at stop light, it started and idled ok. What's your pfc telling you? vacc ,inj, ect. or when was your last service interval?

 

my vac gauge reads 18hg

 

Turn your idle speed control off on the PFC, to see if the ISC is the culprit.