a9l vs a9m - MustangForums.com



5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

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Old 11-19-2008, 10:59 PM   #1
dv3
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Default a9l vs a9m

whats the difference?
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Old 11-19-2008, 11:26 PM   #2
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fuel and spark tables are a tad more aggresive I believe on the a9l....I believe the a9l is the 5 spd ecm and the other is the auto??
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Old 11-20-2008, 12:15 AM   #3
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i have a9m in 5sd lx vert ...theres a sticker (a9m) in the door jam and on the ecm
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Old 11-20-2008, 01:01 PM   #4
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Maybe the car had a T-5 transplant....A9L came stock with the 5 speeds, A9M with the AOD's....A9M will work fine with a T-5, it just controled yhe shift points of the AOD...Pull the computer out and see which one you have (disconnect the battery first )
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Old 11-20-2008, 02:33 PM   #5
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I'll look a little more for an A9M.bin file, then we can look at what the real differences are.

It sounds like the A9M may be pretty similar to the A9P though?

Anyone compared .bins?
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Old 11-20-2008, 02:34 PM   #6
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lol,
I just found one....

I won't be home until late tonight, but I'll take a look by tomorrow...




EDIT:
just in case some one else would like to do a comparison in the mean time...
http://www.eecanalyzer.net/downloads....php?dir=/GUFB
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Old 11-20-2008, 04:00 PM   #7
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Check the camparison between the A9L, A9P and X3Z with http://www.eecanalyzer.net/tech/docs/EEC_Compare.xls
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Old 11-20-2008, 05:30 PM   #8
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Quote:
Originally Posted by timspony View Post
Maybe the car had a T-5 transplant....A9L came stock with the 5 speeds, A9M with the AOD's....A9M will work fine with a T-5, it just controled yhe shift points of the AOD...Pull the computer out and see which one you have (disconnect the battery first )
i cant be sure ...i tryed to look at the old carfax and tried decoding the vin but niether was able to confirm that it was a stock 5spd

but i did just completely disassemble the car and it looked stock ...considering everything else was almost completely stock i would find it hard to believe that someone would have went through all the work to change it to a 5 spd and done nothing else ...and i also think that i would have noticed some where along the line that it had originally been an auto but not sure

the computer says a9m though ...plug was gray if that tells you anything
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Old 11-20-2008, 05:37 PM   #9
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Quote:
Originally Posted by dudeboy View Post
lol,
I just found one....

I won't be home until late tonight, but I'll take a look by tomorrow...




EDIT:
just in case some one else would like to do a comparison in the mean time...
http://www.eecanalyzer.net/downloads....php?dir=/GUFB
thanks
ill be waiting

Quote:
Originally Posted by Joel5.0 View Post
Check the camparison between the A9L, A9P and X3Z with http://www.eecanalyzer.net/tech/docs/EEC_Compare.xls
interesting but theres no a9m in there


i think i finally stumped everyone ...is this possible???
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Old 11-20-2008, 09:36 PM   #10
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Quote:
Originally Posted by timspony View Post
Maybe the car had a T-5 transplant....A9L came stock with the 5 speeds, A9M with the AOD's....A9M will work fine with a T-5, it just controled yhe shift points of the AOD...Pull the computer out and see which one you have (disconnect the battery first )
the AOD is not an electronicaly controlled trans the AOD-E is and those use the EEC-V. An a9m will work with a manual trans it does however have more initial timing advance so watch out for knock and minor drivability issues like surging and bucking in some cases depending on your mod list.
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