Ok my car is bucking really bad! and is only at 12psi of vac at idle.
today when I left work I went to start my car and it just started bad like it wanted to die then after I let it warm up the boost never droped it stayed at 12psi of vac so I went to drive and it drove like I had a race clutch in it and almost stalled then I found out it did this in every gear. so I turned it off and turned it back on and still the same thing....sadly It drives like crap right now and had to limp it home for 10 miles.

could it be boost leak?
exaust leak?
BPV?
BOV?

I check the vac lines and they all looked good.

thanks!

 

learn to drive stick? haha. sounds like a vacuum leak or a maf sensor.

 

yea I will be cleaning the MAF sensor tomorrow

 

THis just happened to me, and it was my lower tmap sensor. (GMS1)

 

yes i say boost leak/ vacuum leak, or a sensor!! hahaha that really throws alot out there doesnt it...

 

did you just clean it?

 

when mine did that it was the top tmap, so just take it out, and see if there is a little oil on it, if there is get electric sensor safe spray cleaner and you could clean it.

 

replaced under warranty

 

Mines doing the same thing , will have to get my HPT cable tomorrow ...

Sounds like a lash adjuster or something tho.. Keeps going into limp mode..

Instead of a 1 second tick I hear a really fast ticking and WOT cuts in and out Bucking horribly.

WTF F MY LIFE..

 

Thats a common GMS1 problem that causes bucking, rough idle, boost at idle, erratic boost and other symptoms.