I have been having an issue with my car showing only 1.1-1.2 bar max and my car was tuned to 1.4 bar and was achieving it before. I notice that when it is hotter around 85-90 I get about 1.1 bar of boost maxing out at 1.2 bar. When its 65 I get 1.1 bar of boost maxing out to 1.3 bars. I was thinking it was my boost frequency valve or a small leak in the hoses so I changed both and still having the same issue. I wanted to know if any of you notice a change in boost when temp changes?

Thanks.

 

Yes, boost will decline as temp increases. Many people run a EBC to control this on the fly.

 

tis' the weather

 

Yup...weather...you just can't compress as much air when it's full of water...On a muggy day with my 1.4 tune, I'll blink 1.3 maybe 1.2, and on a cool night I'll see 1.5...Just drive it...if yours is doing it, so is everyone elses...