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Old 05-27-2008, 01:51 PM   #41 (permalink)
EcoBoost
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Quote:
Originally Posted by Bogie View Post
The curious engineer that I am, what adjustments does the car make at altitude?
Two methods, one most conventional, one most unprecedented:

Conventional: The PCM's barometric pressure readings will detect the lower atomospheric pressure.

Unprecedented: Targeted airflow. As the reduced air density attributable to the higher altitude is interpreted by the PCM, it will increase boost pressure to compensate and return the airflow to its intended value.
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