Ok so i finally just had my rear breaks taken care of shortly after i noticed im only boosting 5psi.....any one have this problem it"s not like it goes to 14.5 and drops it goes to 5psi and holds anyone have this problem or know what is causing it...I have no check engine light on either......

 

Could be a boost leak, or maybe the nuts on the wastegate actuator came loose. A p0299 code should pop up soon.

 

No leak like i said it hold"s at five but on the waste gate did this happen to you b4

I have it in service now so by the end of the day i will let everyone know incase it happens to anyone else they can find this thread usefull

Just took down pipe off, problem fixed so im getting the cat replaced if anyone has this prob bring to dealer for a free fix!

 

I wanna know how you got your rear brakes done haha. Ive been waiting 2 months!

 

people are using saab rear brakes.. it was found those work

 

yep thats what u used, just let your dealer know that they will work as long as they will take ur work u wont pay a dime

 

what does the ss boost to with the wastgate fully open? i know the subbys run about 7 psi with it fully open.

also forgive my newbness but do you guys have a boost control silenoid? I have yet to be able to look over a ss/tc here locally.

 

ahhh I have this same problem! I was only boosting 6.

this is werid. I just got off the phone and they said it hits 15 sometimes so they are ordering a new turbo actuator?

something about a bulletin saying they go bad sometimes.

but yours was a cat mess up?

 

i just got the same problem.... i have no cat so i doubt thats the problem

 

That is actually a very helpful post. Narrows it down a little.

 

When I had my IC crack, that's the first thing they checked for and thought it might've been, so it's a known issue with the solenoid going out.

 

Yeah it happened to me me a couple of minutes while driving, then it didnt happen ever again so I assume everything is fine

 

Maybe the solenoid got stuck and later freed itself. That would explain it.

 

BPV spring or BOV spring stuck open or wastegate stuck open.

 

Had boosting problems when my charge piping came loose...no cel either...hope this info helps

 

i through a code of p0299 which is the wastegate

today i also through p0101 which is MAF sensor

I am taking it to the dealership tomorrow morning to have them fix it

well first off at low RPM the car stumbles so i figured injector? then i checked that the injectors are fine.... then my a/f gauge was reading 18? and the exhaust was crackling and shooting flames above average so finally i said f this i will go do a 3rd gear pull

i pin it and i instantly hear the turbo sound OUTSIDE the car so i knew it was a boost leak plus i was only boosting 15lb when i should have been at 22lb

so its holding 15 then BAM it slams on it face... but there was no loud noise so i knew the charge piping did not disconnect

but i check anyway and behold everything is still connected

i keep driving and throw the p0299 code so i put the car up for the day bring it out the next day and throw a p0101 code so im takin it into the dealership and preparing myself for an argument over warranty reasons

hopefully it will go my way

 

So are you tuned?

 

yes sirrrr

 

if the bottom nipple on the boost bypass actuator becomes blocked off, you will only boost 5psi. im not sure how it happened, but your bypass actuator is most likely the culprit. try swapping and see what happens

 

im goin to have them do all that stuff because i threw more then just one code

i set back to stock where i should be boosting around 15-18 and i am only boosting about 10-12 so there is still a leak and im thinking it is the spring or the actuator

w.e it is they are fixing it

 

if u went back to stock, you shouldnt be boosting 15-18 like you said. stock pulley is what, 12psi? 13psi?

 

this is lnf section my friend not lsj i have a turbo?

 

hah...oopsies! totally forgot where i was! disregard my previous posts