are you running a stage colder plug that is gapped right?

when you connected your boost guage, did you reconnect the other end?

you need to double check all your hoses....... do you still hear a hissing noise?

 

I don't know what plugs im running even [:-], this car is new to me. I did reconnect the other end and I double checked EVERY hose today. I got a bit frustrated so I tried running with the MAF disconnected and I actually got it to boost to 2psi. Even though I have no knowlage on the N75 valve or the wastegate actuator, I think that they might have something to do with this. What are your thoughts on this?

 

Limp mode means you could not go over 5psi at WOT. Since you have Zero boost, then there is something wrong.

Hissing could be coming from T fitting on boost gauge. Look at your T fitting.

 

SpeedTuning chip works awesome for me! It does blow lines off though with reused clamps and high PSI. I've gotten lots of leaks, but its not a direct cause of the chip.

 

sounds like you have a super sh!tty boost leak....im sure if you search for the diy on here you'll find it fairly easily

your turbo probably has probably not crapped out on you...

if I was you I would start the car and get my ears as close as possible to the motor and find the boost leak, since it's a boost leak you will only hear it under pressure (boost)...you may want to let it warm up and rev it up a bit in Neutral...

our cars usually boost to about 4 psi while sitting still, but it sounds like the leak would definately be audible over the engine noise..

gl!

post a pic of your T for your boost guage...I'd like to see how you have it set-up

 

Take a look at the check valves. The one on top of the airbox on my car was pretty much destroyed on the bottom part of the valve. You couldn't see it from the top. You will still get a normal vacuum reading but it will leak like no other when you hit the gas. THere are a few other ones on the car as well so look around at those also. I think there is one under your intake manifold as well.

Josh

 

Sorry for the delay guys.. Right now I am looking into checking the N75 valve.. I'll keep you updated.