Originally Posted by
steveo
i was fairly happy with the results considering it was my first try tuning boost with that ecm, but there were still subtle driveability problems. probably due to pressure-related functions that haven't been mapped out yet in EE. but it is being driven daily right now and he's happy.
if you install a 2 bar map on an ecm designed to read a 1 bar map, it'll produce half the output.
first, you need to disable atmospheric pressure updating somehow, otherwise it'll think your car is falling from the sky. i really hope obd-ii tunercat you can do that, otherwise you're kinda screwed.
then, anything that deals with MAP KPA needs to be cut in half.
in logs, it'll read 50kpa at 100kpa.
if you specify a constant as 50kpa, it'll actually mean 100kpa. so if you're thinking 'engage power enrichment at 80kpa', set it to 40.
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