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Hey Ash

I'm not a tuner, but have a 2014 Colorado and experienced related issues

This video is interesting re tune over what the MAP sensor can read - ...

Thanks Sbarisic

Yeh I think my car is likely hitting the limits of that table "13220 Desired Boost Max vs. Baro vs. RPM" and changing it from tuned up to 300kPa back to stock pretty quickly over...

Hi Sbarisic,

Thanks for the reply, I don't have the HPT hardware to get my actual mapping, just the demo and some stock files I found here on the forum to try and understand things a bit more...

Hi Steve,

Thanks for sharing these files, useful for me to have a look at the stock file as I'm trying to figure out a lack of power issue on my Colorado over 500m altitude - I think as tuner left...

Hi JasonHSV and all

Thanks a lot for the reply mate. I've been doing my own investigation's downloading demos of EFI Live and HPT and stock files off the forums to try and understand a bit more...

Hi PHLTHS and Peasy,

I'm really interested in this thread as have a tuned 2014 RG Colorado (tuned on EFI Live) which is lacking performance over 500m / below ~95-96kPa barometric pressure. The...

Hi all
Had my car tuned about 10 months ago, I live in a very flat part of the country and now over on the East Coast of Australia which has a lot more hills and mountain ranges.

When travelling...