Re: Trust DSMLink or Boost Guage?
Its probably a boost leak. Make a log and floor it in 3rd while your going about 20 mph make sure to pay attention to the boost gauge, look at the boost est it should be the same boost at 5k as your boost gauge, if its not then somethings off.
Boost est is an estimate, if you want to log actual boost buy a GM 3.3 map sensor.
And why are you posting this here? DSMlink.com/forums will have way more info about it then here.
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