starts up fine but idles really high than low where its bout to shut off (does this like twice). if i tap the gas pedal it seems like its drowning, idles low. i let go of the pedal, it idles high agan. after bout 2-3 minutes it relaxes and drives off fine on the road, except for 1 day it shut off on me 4 minutes after driving off. other than that the car seems to be ok after it warms up.
Optional Information: 1996 Buick century 3.1l v6
Already Tried:
injector cleaner, but i put new injectors in 3 months ago