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a9l vs a9m

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Old 11-19-2008, 09:59 PM   #1
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Default a9l vs a9m

whats the difference?
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Old 11-19-2008, 10:26 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 11-19-2008, 11:15 PM   #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, 12:01 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, 01:33 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, 01:34 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, 03:00 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, 04:30 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, 04:37 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, 08:36 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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Old 11-20-2008, 09:50 PM   #11
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Quote:
Originally Posted by SICNINETYCOUPE View Post
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.
sill not convinced the a9m is specifically for an auto for te reasons mentioned above...any proof to back that up
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Old 11-21-2008, 01:38 AM   #12
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While not 100% definitive, this source does list the A9M as an auto...
http://www.fordfuelinjection.com/?p=17
A9M 5.0 89-93 Mustang MAF / Auto (see note 1)

I can't remember ever finding an error on that list...
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Old 11-21-2008, 01:52 AM   #13
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I just did a comparison between A9L and A9M using BinEditor...

Basically they are the same tune.
There are some very minor differences, but you would never notice them. The A9M is closer to the A9L than the A9P, and many people switching between the A9L and A9P have reported NO CHANGE.

The differences are so minor, that I don't want to take the time to post them.

For those interested...
BinaryEditor can be down loaded for free here...
http://www.eecanalyzer.net/downloads/
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Old 11-21-2008, 07:22 AM   #14
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Quote:
Originally Posted by dudeboy View Post
I just did a comparison between A9L and A9M using BinEditor...

Basically they are the same tune.
There are some very minor differences, but you would never notice them. The A9M is closer to the A9L than the A9P, and many people switching between the A9L and A9P have reported NO CHANGE.

The differences are so minor, that I don't want to take the time to post them.

For those interested...
BinaryEditor can be down loaded for free here...
http://www.eecanalyzer.net/downloads/
thanks
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Old 11-21-2008, 07:53 PM   #15
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Quote:
Originally Posted by dv3 View Post
sill not convinced the a9m is specifically for an auto for te reasons mentioned above...any proof to back that up
i've personally ran an a9l and then switched to the a9p because i smoked the a9l welding and noticed little anoyances in how the car drove. it drove a lot smoother with the a9l, if i would be at a light or stopped with the shifter in gear and clutch in it would start to surge and cruising anywhere under 3k with part throttle it would buck, car didnt do that with the a9l. i was running an AFM n-71 cam with twisted wedges and holley intake with 4.30 gears. the cam was very large and did inherently have a few driveablility issues but they were deffinitely exaggerated by the a9p.
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Old 11-21-2008, 08:31 PM   #16
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Quote:
Originally Posted by SICNINETYCOUPE View Post
i've personally ran an a9l and then switched to the a9p because i smoked the a9l welding and noticed little anoyances in how the car drove. it drove a lot smoother with the a9l, if i would be at a light or stopped with the shifter in gear and clutch in it would start to surge and cruising anywhere under 3k with part throttle it would buck, car didnt do that with the a9l. i was running an AFM n-71 cam with twisted wedges and holley intake with 4.30 gears. the cam was very large and did inherently have a few driveablility issues but they were deffinitely exaggerated by the a9p.
but how bout the a9l vs. a9m???
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Old 11-22-2008, 01:52 AM   #17
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Quote:
Originally Posted by SICNINETYCOUPE View Post
i've personally ran an a9l and then switched to the a9p because i smoked the a9l welding and noticed little anoyances in how the car drove.
I'm not doubting that the car would perform differently (especially in 'drivability' ranges of rpm & load), but is it possible that more than the ecu was fried?

Maybe there was other damage that wasn't fixed?
Did you ever swap out the A9P for another A9L to confirm the issues were indeed due to the tune?

btw, it should be noted that the A9P did not CAUSE drivability issues. The fact that the A9P tune was not matched to the hardware on the engine is what caused the drivability issues.


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but how bout the a9l vs. a9m???
If you are really curious about what the tune differences are, then download BinaryEditor... which I linked to above.

From what I saw, think of the A9L as being the same as the A9M. There's very little in the way of differences.
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Old 11-22-2008, 09:55 AM   #18
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dudeboy is correct, all issues were corrected after i had a new hi-rev chip burnt for the a9p as the original chip was fryed along with the a9l, BUT, if i was running a cam that didnt require 6700rpm fuel/timing maps then the issues would have continued.
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Old 11-22-2008, 05:49 PM   #19
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dudeboy is correct, all issues were corrected after i had a new hi-rev chip burnt for the a9p as the original chip was fryed along with the a9l, BUT, if i was running a cam that didnt require 6700rpm fuel/timing maps then the issues would have continued.
Wait...
did you fry the ecu or the J3 chip?
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Old 11-22-2008, 05:49 PM
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