That's good to know..I'm installing a 95 LT1 engine in my son's 37 Chevy in the next month or so. Just finished up the alternator mounting bracket. I'm sure I'll be looking for help flashing that ECM.
I owe you one and I'm set up to bench flash the LT1, but not sure how my health will be in next month or so, but we will try...
There is no fan temps to use in the 7747.
1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
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