bbyevo8u

iTrader: (14)

my car wants to stall when i start in first the rpms dip and it feels very slow off the line untill the rpms get up a little bit? and the turbo has slow spool up its just slow and late! and when it does spool up it drops down and i think i hear an air sound? so i took my front bumper off and tightened all the clamps on the ic piping and i even over tightened one clamp and it poped so i screwed it down again it seemed alright!
its still happening the upper rpms are moving kinda slow its taking pretty long to get to redline! after the turbo starts to spool past 3k rpms?? it feels like the car starts to slow down almost and i dont hear the turbo whine? almost like fuel or boost cut off?

the only mod i have is a greddy ti catback and this is my second evo so i know this is not normal!

can anyone please help me out here

Curt@MrLed

iTrader: (107)

what rpm's, did you do a pressure test, is your wastegate stuck open, you didnt need to take the front end to do the clamps.. vaccuum line to the wastegate open... any ces codes.. we need more info..

Warrtalon

iTrader: (6)

All the info you need in order to understand his problems is to view his profile and click on "view threads started by bbyevo8u." You will quickly realize what's going on...

bbyevo8u

iTrader: (14)

no check engine light how can i tell if the wastegate is open?

pjsevo8

iTrader: (38)

check the vacuum line to your egr valve had the same thing and this solved my issue hope you find the problem dont stress over it.

PJ

bbyevo8u

iTrader: (14)

what did you do? how can i check it? i did not do a pressure test! all the boost line seem intact! can you throw me a little more info?

pjsevo8

iTrader: (38)

yea reach in behind your block under the throttle body and there is an actuator looking thing check and see if the vacuum line is still connected the nipple faces the passenger side. I had that pop off a lot and my friends have too. I always put it back on for my friends. I zipped tied it hasnt popped off yet lol let me know if that helps

PJ

KazzEvo8

iTrader: (2)

do a leak test, don't just tighten clamps - FIND ANY LEAKS and fix them. Make sure your MBC is mounted correctly.

kmcconn9

iTrader: (33)

/\ +1. If this is done, you will find the problem much quicker than attempting different things..

EvoTech

iTrader: (25)

PMd ya. Bring it by and we will do a boost leak test and see what is going on.

11secEVO7

iTrader: (37)

i would have suggested it could be something to do with the air/fuel mix perhaps...??
but if the exhaust is your only mod, then u should check for leaks

bbyevo8u

iTrader: (14)

thanks guys i will do a leak test and let you know the out come from it