So my setup is 42's, 3" pulley, Injen CAI, Magnaflow catback, Vibrant header/dp (catless). My boost gauge is pegging out while in WOT? I've been wanting to get tuned for a while by a local tuner but he is worried about the way my car is behaving? Is there anything we should know before he tunes or is it just because of the tune?

btw I've got an intense tune? not the it helped much...

any help would be appreciated!

 

clogged cat????

 

hes catless

 

yeah, we thought that was it and so i went and got it cut out, now that it's out it still reads it?

 

well its not that then???

Guess I need to improve my reading skills

 

lol. 20 psi on a 3"
pretty whicked! id say the tune is bad.

 

are you using the stock gauge because it could have gone bad
get a mechanical gauge and let us know if it says you are boosting the same

 

it's pegging out? kinda like its not even reading it correctly?

 

Ur tuned for the 42s?
And yeah sounds like something clogged or restricted

 

so go get a mechanical gauge they are way more accurate

 

cant just get a different boost gauge, currently unemployed? is there any other way to figure this out?

 

are you friends with the tuner he can log you can with hp tuner and see what is says to see if it is the gauge that is broken

 

yeah i think he is actually doing this tune as just to do it? idk though... we'll see...

so what you are sayin, is that he can see from HPtuner if the gauge is broken?

 

Yeah. Get a log from HPtuners and make sure you get a log of the MAP kpa. That will tell whether you are actually boosting that high or not.

If you are catless and you actually are overboosting, then there is something else causing a restriction. Time to pull the valve cover off and check to make sure that there is no valve train damage.

 

i just remembered, the gauge is reading vaccum fine?

 

bump... anymore advice?

 

Do as ^ says. That's the easiest way to find out.

 

alright sounds good... if any one else has an opinion please post!