Here is a peak at the two timing tables pulled from the TwEECer website bin files for both computers........
Speed_Demon1965 said:An automatic tranny can not use a manual computer (A9L). The computer has none of the programs it takes for the tranny. I don't think the AOD is fully electronic, but I'm sure something is electronic in them.
The reason an automatic computer (A9P) can be used with a manual tranny is because the manual tranny only needs a vehicle speed sensor to work, nothing else. Which the A9P already has a program to read the VSS.
Actually, I think this whole "automatic vs manual computer" thing is alot more serious on 94-95s because the auto is FULLY electronic.
tim_the_toolman said:This is correct. According to the Ford Fuel Injection Handbook the pinout for the 5 speed computer and the auto computer are slightly different. If you use a 5 speed comp in a auto the voltage that goes through one of the pins backfeeds and frys the ecu. The auto computer works in the 5 speed because the pinout deadends.
tmoss said:Here is a peak at the two timing tables pulled from the TwEECer website bin files for both computers........
astronut1885 said:I just put an A9P into my 5spd 87GT with a MAF conversion, and I have had no problems. My mechanic told me the A9p is the better one to get because it has a better timing setup, and it adds slightly more fuel because it's setup for the loads an auto puts on the car. I don't know what of that is true, but my car runs fine with it.
BlackFox5.0 said:I don't see a Base Timing Table for the A9L in my TwEECer program
Venom4.6 said:In my first post, I was just quoting what I have read in my Mustang Technical Reference Book and also what I have been told. The book was written by Ford so I'm going by that.
dmay said:possibly spark table-sea level?
I just downloaded from the website,I don't know if what I downloaded was the version you get when you buy a tweecer.
I just wanted an idea what the software looked like.
what I downloaded won't start calcon,says"invalid variant type conversion"
tmoss said:Did you download Borland First?
71vert-pga said:Casey4093,
Did you have to change a pin or something?