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Old 04-27-2020, 02:28 AM   #51
JSR84
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Member#: 469585
Join Date: Jun 2017
Chapter/Region: W. Canada
Vehicle:
2009 STi
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Originally Posted by KClemente View Post
Don't have enough reply's to create my own post, but does anyone still have a copy of the FA20DIT Calculator? Just installed a new fmic and I have to rescale the maf as the car isnt driving properly. The car is pulling major negative trims and going afr's are really rich.
Negative trims would indicate a vacuum leak. Is it rich under boost?
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Old 01-15-2022, 01:14 AM   #52
KClemente
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Member#: 514077
Join Date: Apr 2020
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Originally Posted by JSR84 View Post
Negative trims would indicate a vacuum leak. Is it rich under boost?
Just remembered I had an account on this website... for anyone reading this post, we installed a VTA Tial and all our trouble was caused because it was open at idle. It was a weird process because we bought what we thought at the time was the correct spring.

Changed it out and all is well.
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