1993 300zx twin turbo idles rough but runs great
 

hello ive got a 1993 nissan 300zx and it idles rough. it does great when its driving and it pulls just idles rough. the idle goes around 1200 and down somtimes. also the car somtimes turns back off. another thing is that the car is a twin turbo with 80000 miles on the car and motor. sorry if iam annoying bt iam new to the forum. just joined today. hopefully somone can help me. i cleaned the intake manifold and also i replaced the sparkplugs and gapped them also the car i just picked up from a guy so i dont know any history about it. :s-chainsaw::s-chainsaw:

Sounds like a vacuum leak... Check associated plumbing.