Re: spark data on 1993 TBI 5.7 engine

[steve ravet <sravet@arm.com>]

I have the same engine in my S-10, only 1991 model.  I use an MPSI
scanner and never noticed any spark data, figured this "old" C3 didn't
output it.  I mostly use the scanner while driving (open mode), I don't
know if the other modes (ground, diagnostic) have spark info or not.

Al's got me curious, though, about a superceded PROM for my
application.  I don't know what my current BCC is, can someone tell me
what the latest one is?  It's a 1991 Caprice cop car 5.7L TBI V8.  Is
that enough info to look it up?  Jason, do you have any information
about the PROM contents?

--steve

> "Jason R. Haines" wrote:
> 
> 
> 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
> 

-- 
Steve Ravet
steve.ravet@arm.com
ARM,Inc.
www.arm.com
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