I am converting to mass air, and I keep getting different answers about whether or not the computer I have will work. The computer is out of a 1989 notch 5.0. The car is a 5-speed. My car is a 1988 Mustang GT, with speed density. People keep saying that i need the computer out of a mass air car that had an automatic, any thoughts? I do have all of the wiring/harness.
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1988 red GT AOD. Mods: Ported GT40P Heads, 3-Angle Valve Job, E303 Cam, Edlebrock Performer 5.0 Intake, 65mm BBK EGR, Professional Products 65mm TB, MAC CAI, 80mm MAF, 24lb Injectors, 255lph Federal Mogul Fuel H.O. Fuel Pump, BBK Shorties, O/R H-pipe, Flowmasters, Dumps, Timing-16*, Shift kit, 4.10 gear, Sub-frames, Aluminum racing radiator, B&M Trans cooler, Pro-Form Upper and Lower Control Arms, Energy Suspension Urethane Suspension Components Recent: MSD 6AL Ignition, Battery Relocation
I hope Eagle or someone will confirm this but I believe you will need a computer tuned for an AOD. I don't mess with factory EFI much anymore and can't remember for sure.
Others will be here soon to confirm! Eagle, where you at?
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There is no replacement for displacement.
'87 Coupe - My "Eleanor"
Stock '91 Bottom End - Anderson Built TFS Heads - TFS 1.6 Roller Rockers - E303 Cam - Weiand X Intake - Barry Grant Race Demon 650 - UPR K-member - UPR A-Arms - UPR Upper & Lower Control Arms - Strange/UPR Coilovers - 5-lug Conversion - Strange Axles
I hope Eagle or someone will confirm this but I believe you will need a computer tuned for an AOD. I don't mess with factory EFI much anymore and can't remember for sure.
Others will be here soon to confirm! Eagle, where you at?
Yep you are right need a computer for the aod
A9P is a AOD PCM.
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Reggie
Real Racers Don't Street Race
PERIOD.......
'88 LX Hatch With A Little Of This & A Little Of That...... 10.39 @128 MPH Soon to be faster....
Should be plug and play. I have run AODs with 5 speed computers, no problems.
Are you concerned about the EEC running the engine or the wiring harness actually working? The wiring is only different for the clutch pedal, I believe pin # 30 - the EEC is looking for whether the clutch is in or out. At any rate, the car will RUN anyway.
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Quarter Pounder
'93 LX Coupe; 2.3L swap
COBRA CLONE: GT40Ps, 1.7 rollers, Explorer intake & TB; 24 pounders, long tubes; X pipe; dumps; pullies; filter etc.
I would get a computer that corresponds with the tranny you have. You can use a 5 speed with an automatic computer, but since they are different, I'd go with the other one. Maybe that's the perfectionist in me, but that's what I'd do.
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MOOG Certified Tech. For mods and sound clips, see profile and gallery.
Ask me why I ran "only" a 13.54.
Member: NMRA Member: White Mustang Registry #362 Member: Fuzzy Dicer
5 speed computer in AOD speed density GT 
