[nankles]

Hello all,
I stumbled onto this site because my ALH with 133k threw a turbo underboost code. It looks like there is a ton of great info here. Looking forward to checking out the community.

 

[chittychittybangbang]

Welcome, there are a number of possible causes. Without more clues, take a look at the low power checklist in the FAQ and start working your way through it.
welcometomyturbodies