This is topic A9S computer ????? in forum Tech Talk at Northern California Ford Owners  .


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Posted by SSF 50 (Member # 7219) on :
 
its on a 89 mustang 5.0 5spd i thought a A9L was a 5spd computer what is a A9S computer
 
Posted by modular (Member # 6599) on :
 
It is an auto computer but will work perfect on the manual trans.
 
Posted by street_illegal_stang (Member # 1554) on :
 
I had a a9s cpu in my original owner 89 gt with 5spd and 112k miles..I Never changed the tranny.
the a9l and a9s are pretty much the same.just slightly differnt emission program
 
Posted by SSF 50 (Member # 7219) on :
 
so there isnt no differents

and what is the slightly differnt emission program
 
Posted by street_illegal_stang (Member # 1554) on :
 
yes, the're really not that different.
the a9s cpu was exclusivly for California emissions 5.0h's.The a9l has more timing in the mid to wot range and does'nt reduce timing duing shifts from what I heard,but i may be wrong .
There both very good tuning cpu. [burnout]
 




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