Low fueling or boost leak?

Sauaciden

Active member
Joined
Oct 4, 2019
Location
Lithuania
TDI
A3 8L 1.9TDI AGR
Hello, so I got A3 1.9TDI 90hp (AGR) that I upgraded to vnt with 130hp turbo, 110hp injectors, egr delete and mafless tune. Car has 150hp right now. First week after tune car felt amazing, stronger pull and everything (I was tuned to 120hp with wastegate turbo before) but after that week it feels like power went down back to 120hp levels, no torque I had before. I am wondering if I have boost leak somewhere or I am getting fuel restriction.

Fuel filter has been changed 20k km ago, injectors are reconditioned. Turbo is perfectly fine, no compressor damage, , movement or sticking geometry but I can hear it spool pretty loudly under acceleration (There is no CAT. As far as I can see there is no boost leak anywhere so no idea why it is loud).

Is it possible that I have boost leak before map and it restricts my fueling?
 

Sauaciden

Active member
Joined
Oct 4, 2019
Location
Lithuania
TDI
A3 8L 1.9TDI AGR
Also just noticed that I posted in wrong forum. I am sorry. Can mods move it to correct section?
 
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