What computer is this?

[my2foxes]

A buddy gave me a computer tonight that he had sitting around . he thinks it is from a 5spd mustang . The #s read as E9AF 14A624 AA catch code is A3M . Will this work to convert my 88 to mass air ?

 

[BlownFiveLiter]

It should, as far as I know. The A3M is a 93 5.0, 5spd EEC.

I'm gonna go ahead and toss this one in 5.0 Tech, since it's more of a technical issue, rather than tuning.

 

[mob]

Wait i thought the 93 computer was a A9L? Am I just confuseD?

 

[LiquidGT]

Wait i thought the 93 computer was a A9L? Am I just confuseD?

Thats the '89 computer that everyone talks about so much.

 

[mob]

Oh maybe I just heard it so much I thought thats what was in all of them. Whats the difference between the 89 and the rest? One better than the other?

How come in some posts I see people saying, including jrichker, that the a9l is 89-93 mustang computer?

http://forums.stangnet.com/773793-92-gt-computer-failure.html#post7779972

 

[Shakerhood]

There is a A9L in my 92 as the ID sticker is in the PS Doorjamb.

 

[Mustang5L5]

A9L and A9P are the two "best" Mustang computers. They are the most aggressive factory EEC's in a MAss Air car. The A9L is a 5-spd and the A9P is an AOD computer.

 

[nunly94gt]

Wasnt A3M the California calibration?

 

[Mustang5L5]

The A3M is not a 1993 computer. I think that's a C3M1 or something like that

A3M is a 1989 service replacement for a A9L....basically a Ford reconditioned computer

I have a mass air computer from police car - Ford Mustang Forums

 

[vristang]

The catch codes were NOT year specific...
A9L was used on several years, so was A9P.... they are just the most common to find when you open the kickpanel.

'Aggressiveness' is often exagerated, as the ecu differences are pretty minimal. I've never seen back to back track data for different ecu's? Anyone seen this?

 

[Mustang5L5]

'Aggressiveness' is often exagerated, as the ecu differences are pretty minimal. I've never seen back to back track data for different ecu's? Anyone seen this?

I don't think the differences are worth swapping computers over.

"Aggressive" is a relative term in this case just like 86-88 camshafts were more "aggressive" than 89-later shafts. The actually differences would prob never be detectable on a track or even a dyno perhaps

A custom tune on top of either computer completely negates it so it's a moot point.

 

[FoxChasis]

The original EEC module removed from a friend's '93 LX 5.0L w/ T5 has an A3M program code.

According to fordfuelinjection.com it's a legit program code for '89-'93 5.0L Mustang with MAF and manual transmission.

Ford Fuel Injection EEC Program Codes