Intake air temp vaccum leak?

[zohaibrose]

Just did a smoke test again and found smoke that seems to be coming from the iat sensor area on the m52 that sits in the intake manifold, does this sensor have a oring or something because I swear I saw smoke coming out of it , it's in all the way but don't know what could cause this

[zohaibrose]

Just checked and see that their is a green oring, after fixing some vaccum leaks car feels alot smoother and revs down faster, still rev hang