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Leo
10-05-2005, 09:30 AM
1989 mustang GT
car was auto, swapped a t5 into it. but never changed the computer. if i change to a A9L will the firing order be the same? will i have to change the wires or get it tuned or anything?

yes these are virgin questions but thanks for any help

YsOffcr
10-10-2005, 05:11 PM
When I did my swap to the T-5 Ford Racing Tech advised me to keep my auto ECU, it was more agressively tuned than the 5spd. You can contact them at (586)468-1356. If you swap the ECU you will probably have to get one from an 89 5spd, 88 had speed density (except CA ones) and 90-93 had airbags. Firing order would be the same. If you keep the AOD ECU, you will have to get the Idle Setting Procedure from Ford Racing, I had stalling problems until I set the idle.