spark data on 1993 TBI 5.7 engine

[Jason R. Haines]

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

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.diy-efi.org/pipermail/gmecm/attachments/20000901/a554439b/attachment.html>