ccm/bcm testing

[aafc]

OK last update,
Just came back from test drive everything is working. Speed/ood instant mile
per gal, avg mile per gal, trip reading.
back ground
car 1990 zr-1 with 4l80E transmission using compushift transmission controller.
the compushift controller uses a signal call TOSS (transmission output speed
signal). this signal can be used to send inputs to your ecm. Now i use a
transmission raito adapter to sent toss sig to the ecm, but it goes first to
raito adapter.The unit has ground,+12v , sig in from toss and sig out to the ecm. Well they don't work very well when you lose ground connection. therefore
no ground no sig to the ecm from the raito adapter.
In an early post i said that about 2 months ago sys lite was flashing, but i
did not lose my speed/ood etc. when pulled the codes from the ccm/bcm
they were h32,h34,h36, and h38. cleared codes and they did not come
back. But with the ground being loose (all the time i lost my sig).
Repaired loose ground connection now everything works.
I have been working on an auto trans install since Aug.2004. since then
i have broke 2 4l60E's and 1 700r4 too much HP.
so i installed an 4l80E out of a 3/4 ton chevy truck. had it rebuilt with
2:75 1st gear 1:57 2nd gear 1:1 3rd gear 4th gear .75. rear end gears are
3.73. @ 70mph i can get 20mpg in cruse mode. around town 15-17 mpg.
At the track best run 11.58@120mph and during hot weather i run 11.70 to
11.88 @ 117 mph.
So it was the VSS sig in a way, signal was good but the ratio adapter did not see it.
hope i made this clear to everyone who helped me with things to look at.
thanks
John
1990 white/black #2546
one of a few 4l80E eq ZR-1's