Boost Gauge ?

[GTDI4]

I installed a new turbo (VNT17) the old one was VNT 15 also a Diesel Geek race pipe, pipe did not throw an engine code.
But now the boost gauge does not work, yes the right line is hooked up in the same place. Every thing was marked and I double checked.
I am stumped. Any ideas out there about what can be wrong?

 

[nkfry]

Did you kink the reference line for the gauge? That clear tubing is usually extremely inaccurate after being kinked.

 

[GTDI4]

I use the standard VW vac line, rubber with cloth covering.

 

[nkfry]

There's either a blockage in the line or its kinked somewhere. The car would be gutless if it didn't make boost I would check the line.

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[GTDI4]

No kinks from the firewall out. The boost gauge is stuck -5 looks like it wants to go lower. The car has plenty power, runs great.
Like I said everything is hook back up the same. weird? It worked fine before the work was done on the other stuff,
I will blow out the line in morning, I hope that's it.
Thanks

 

[GTDI4]

Found the problem vac line was disconnected at the 1 way check valve . Must of happen when installing the EGR cooler bypass hose to the heater core.