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Old 04-11-2013, 12:03 PM   #3
the suicidal eggroll
Scooby Guru
Member#: 51961
Join Date: Jan 2004
Chapter/Region: RMIC
Location: Broomfield, CO
2005 STi
2012 WRX


Probably some non-linearity with those injectors, or some non-linearity with the stock injectors that was being compensated for with the MAF scaling that's now fighting the linearity of the IDs.

Yes, theoretically, you shouldn't need to touch the MAF scaling or load compensations when changing injectors, but 90% of the time you do.

Also make sure you've adjusted tip-in and per-cyl fueling compensations as well.
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