dmnbrm

hi hope someone can help??
my 96 wrx import idles really rough on start up,the engine feels like its shaking?if i put my foot down it goes to 4000rpm and hits a flat spot almost like the car stops.
when its warm the idle is fine and there are no flat spots.
thanks for any help
damian

kalv

Could be a coolant temperature sensor gone dud? cheap replacement from dealers?

dbuxs

did you try and check the ecu for faults ???