i recently put in a new clutch and i took out the whole engine to do it. i now have everything back together and everything runs fine until i go WOT and the boost hits 15psi instantly drops down to around 2-4 psi and tries to jump back up but it feels im in a carberated car running out of gas lol you all know what im talking about. just jerking back and forth like maybe its not getting enough fuel? not sure my buddy recorded this video and you can hear what it sounds like hopefully someone can help. thanks for your help



aem intake
turbo back exhaust
greddy electronic profec b spec 2 bosst controller
evo 9 bov
twin disk clutch

http://www.youtube.com/watch?v=DIOzU...ature=youtu.be

 

did u check to make sure every plug and sensor is back in its correct spot and not plugged into something its not? just a thought.

what happens when u roll into the throttle?
if i were u i would stop doing those WOT pulls. looks very unhealthy for the motor.

no codes?

maybe the boost controller?

 

Boost leak test done?

 

Check your bov, make sure all clamps are tight and no vac leaks in the hose. Doesn't look like a fuel cut, it would hit much more violently. And you wouldn't get back on the throttle that quick.

 

yeah i checked and they all seem to be in the right spot. and i checked all the tubes and they are fine. when i roll the gas peddle it wont do that. i can drive regularly with barely boosting no problem. its only when i get on the gas

and i did not do a boost leak test sorry for my ignorance but im kinda new to this and not quite sure how to do that.

i also changed the boost controller solenoid to see if thats it cause i dont hear the clicking like i used too when it was working and that didnt help either

 

https://www.evolutionm.net/forums/ev...g-how-why.html