Highway mode spark advance ecm7730 - Third Generation F-Body Message Boards

LBSZ28BLOWN · 10-30-2001, 01:46 PM

On a 7730 8D how do I enable Highway mode spark advance.
I'm using tunercat, and thought I set all the tables & constants corectly.
Is there something eles not see in tunercat that needs to be set.
My Highway mode fueling seems to work fine.
Thanks
Louis

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Louis
Convertable
92 Z28 305tpi Auto
1/4 at 12.99 @ 109.07mph w/Paxton 10psi, Ram air mod,Water methanol inj.,52mm T/B,ASM Large tube runners, ported upper & lower intakes,AFPR,23# injectors,1.6 roller rockers,slp tri-y headers,3in. cat,3in. gale banks cat back system,3.42 gears,17x9 camaro SS wheels, 285x40x17 tires,and much more.
http://www.lbsz28blown.cz28.com

Grim Reaper · 10-30-2001, 03:40 PM

I was wondering if anybody was ever going to notice this. You are right, the stock BIN as it is defined for an SD car with the AUJP will not invoke the Highway Mode Spark Advance.

I actually "rewrote" the code to change the "testing conditions" within the eprom to make it work differently. I will see if I can "dig up" the "bits I twiddled" to make it work.