Originally Posted by rokcrawlin85 disabling checksum does what exactly to an ECM? You change the maskID to AA while emulating, I've always changed it back when done, I don't know what it would do to ECM if left at AA?
1990 Chevy Suburban 5.7L Auto ECM 1227747 $42! 1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner! -= =-
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