Quote:
TB993tt said:
The ECU is trying to hit air mass targets NOT pressure targets, it doesn't see boost pressure..... hence it allows less boost during denser air (cold) conditions to achieve the same air mass targets which would have required more boost in warmer (less dense) air conditions



TB993tt,
What is your source for this information?

I may be misunderstanding you, but I have a different take on this.

My view is that:
- air mass flow is primarly decided by throttle opening (or your right foot)
- the ecu's job is to match the quantity of fuel injected to the air mass flow rate, as well as to match the spark timing to engine speed and load

What makes you think that the ecu does not have a boost pressure sensor input?