barring some random miraculous discovery at this point..?

i would ask gmg to test your ecu boost solenoid for integrity. another shot in the dark from a guy that don't know sh*t.

....add: ( though if that's the tech term for the n75? i've just managed a self fulfilling prophetic post and pls disregard lol ) just tryin to help

 

Boost is normal if not low on the dash. It feels like the car has a leak to me. Car is still at GMG without any results.

I missing two pca events this weekend which is a huge bummer.

 

Thanks for all the input and support. I am starting to get bit discouraged.

 

.. i'd be near tears. i know you realize if this continues, you are going to have to seek expert help from another shop. sorry to say. i just don't think i've heard of a shop ( sooner or later!? ) not being able to diagnose a car throwing code(s).

chin up bro. they can't be charging you for NO diagnosis!

 

It is odd to say the least. I will give it a few more days.

 

if all else fails? i think you know sambott out here. i'm sure he could steer you to people that could help.

 

They are now thinking it could be a blown turbo. I have stock K16's.

Has anyone seen the turbos fail? Anyway to test them while on the car?

 

It really sounds like your tune is the problem. How many bars do you typcally see?

 

Put new K24's on the car and retuned it. STILL not fixed.

The N75 valve has been replaced, turbos, exhaust, radiators (unrelated), tune, maf, pressure tested to 20 psi.

Any thoughts!? I am becoming discouraged and don't want to spend any more money!!

 

I would take it to another shop or sell it as is. I believe you have given this shop to much credit/leave way.

 

Sell my car? I have given up on that and I hope it does not come to having to bail on it do to an unknown issue. Talk about loosing money!

GMG has promised to stand by there work and will credit the labor for the turbos to me. So far they have been fair. I want to give them a chance to make this right, but I also want my car to work properly.

 

Why did u put on new k24s. Makes no sense.
They are missing something very obvious.
I found issues others could not and took me 20 min. Not to brag but this can't be that hard to find.
A pressure test at the throttle body then at the hoses by the turbos will find everything. But the test had to be done right not just a smoke test. N75 is not the issue. Could be the line going to and from which would make sense why a stock tune is overboosting( the wgs are not getting the correct pressure to open and release boost). Just a thought. P1250 I believe you have. That's a pressure side issue. I bet the over boost is on the dash only and wil not show up on datalogs. That's again another sign it's a simple pressure side problem. I'm shooting for that as your cause.
If you were closer u would find it for you.

 

GMG assured me it was the turbos so I went through a circus to get a set to them. They came to this theory by disconnecting the waste gates one at a time and noticed that the passenger side turbo was not boosting.

At this point, For the driving I do, I would really prefer to go back to my k16's assuming that was not the cause.

Want to fly out to Cali? Haha

 

Credit for labor is nice but what about the cost of unneeded parts I must be missing something lol. I'm sure they are a nice bunch of people but I would have went elsewhere a long time ago.

 

I haven't been wrong often.
I wish I had you as a client lol
Problem is your not listening just throwing money at it.
It's not the tune it's hardware. And def not the turbos. That's absurd.
Markski