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The mkiv Supra Owners Club

Shifting problems on supra eu tt automatik ***solved****


jza800

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You will most likely going to need to have the General EU A/T ECU, Toyota part # 89661-14530 if your car is general Euro Spec Auto Supra.

 

There might be some issues if using Austria / Switzerland A/T ECU, Toyota part # 89661-14550, as the Austria / Switzerland A/T ECU is programmed for different part # auto transmission and differential. But it also could work as it should.

 

Theres also a possibility to use USDM A/T ECU Toyota part # 89661-14510 / 89661-14511 as the engine wire harness is same between US/EU Supras, but US Supra ECU`s does not have as good ignition timing and fuel charts as EU ones do. Also the differential and auto trans are different from the Euro Spec Supra.

Edited by Mika (see edit history)
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You will most likely going to need to have the General EU A/T ECU, Toyota part # 89661-14530 if your car is general Euro Spec Auto Supra.

 

There might be some issues if using Austria / Switzerland A/T ECU, Toyota part # 89661-14550, as the Austria / Switzerland A/T ECU is programmed for different part # auto transmission and differential. But it also could work as it should.

 

Theres also a possibility to use USDM A/T ECU Toyota part # 89661-14510 / 89661-14511 as the engine wire harness is same between US/EU Supras, but US Supra ECU`s does not have as good ignition timing and fuel charts as EU ones do. Also the differential and auto trans are different from the Euro Spec Supra.

 

Thanks for the reply, have talked to toyota, and they say i need ecu with this number. 89661-14531, does that sounds right?

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