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I am trying to figure out why a Tech 1 and a Tech 2
don't show spark data for a 1993 Caprice with the 5.7L VIN 7 engine (5.7L TBI
engine). The chip broadcast code is AYDN (checksum 793E) and the ECM
part number is 16136965. The data in the chip looks a LOT like a 1985 TBI V8
engine. The chip type is 27C32B.
Any ideas why I am not seeing spark data? Any way
to see and log spark versus rpm data?
Regards,
Jason
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