I'm feelin like a total idiot. I have the GMPP tune & the new Bosch sensor. I noticed in a picture that the second screw fo the lower TMAP sensor has a screw in it. IS THAT A THROUGH HOLE??? I have been struggling for a few weeks with a pesky air leak and even broke a few of the t-clams on my Hahn IC piping trying to secure everything.
Wholy moley how could I have overlooked that. I bought a new air pressure regulator today to presure test my system to look for a leak. I'll probably still use it to be sure but how dumb do I feel.

 

Hahn has still not contacted me to this day. I have never experienced customer service this bad The performance shop I was working with told me they have dealt with Hahn in the past and they are impossible to get a hold of for support.

 

3bar sensors require a retune no matter what else you use them with...

 

I have yet to install the pipe that is right in front of the radiator, I cannot for the life of me figure out how to get any tools let alone my hands in there to unbolt the sensor and clamps!?

How did everyone else do the front tube that goes into the intake? AND YES MY BUMPER COVER WAS OFF!!

 

If I had to do it again, I would move the radiator.