and1c Posted August 25, 2016 Share Posted August 25, 2016 Ok, I bought a new Auto TT ecu as I thought this was causing the fault codes and weirdness I have been experiencing. The replacement ECU for mine (1993 jspec TT) has a different part number... I have on Supraforums and found this ECU Identification Numbers I've located all this, but does anyone know the numbers for the US-spec TT Auto 96-98 Supra ECUs? Aristo ECU Part Number: - 89661-35060 (91-93) - 89661-30870 (93-97) Supra ECU Part Numbers (Auto, J-Spec, NA): - 89661-14600 (93-97) - 89661-14810 (97-99) Supra ECU Part Numbers (Auto, J-Spec, TT): - 89661-14490 (9305-9310) - 89661-14491 (9310-9605) Supra ECU Part Numbers (5Spd, J-Spec, NA): - 89661-14610 (only number listed) Supra ECU Part Numbers (6Spd, J-Spec, TT): - 89661-14500 (9305-9310) - 89661-14501 (9310-9605) - 89661-14770 (9605-9709) - 89661-14830 (9709-) Aristo ECU (JZS16#) - 89661-3A470 (9708-0007) - 89666-30180 (0007-) The ECU part number depends on the age of the car. 2JZ-GTE engine jzs=Aristo 89661-30510 = JZS147..Q Oct 91 - Aug 93 89661-30750 = JZS147..Q Aug 93 - Aug 95 89661-30880 = JZS147..Q Jul 94 - Feb 95 89661-3A180 = JZS147..Q Aug 95 on 2JZ-GTE engine 89661-30560 = JZS147..V Oct 91 - Aug 93 89661-30870 = JZS147..V Aug 93 on My original ECU that I am trying to replace is 89661-14490. That is the correct ECU for the car. The replacement one I have is also labelled as being for a 2JZ-GT A/T but (and the label is worn so I can only read part of it 8***1-146** Now, I can only see the NA auto ecu that has a 6 as third digit in the second number. Mine is 100% OEM labelled as a GT ecu and the numbers above are right!! Anyone got any ideas what its from?? I have googled my ass off and can't find anything. I am wondering if it is a superceding ECU of the original?? Instead of a large 89 label it has a yellow label with 06 on if that helps anyone...(depending on which way you read the label, so it could be 68 and 90 respectively!) cheers Quote Link to comment Share on other sites More sharing options...
Nic Posted August 26, 2016 Share Posted August 26, 2016 The ECU from a UK spec 2JZ-GTE auto has the part number 89661-14661 Quote Link to comment Share on other sites More sharing options...
and1c Posted August 26, 2016 Author Share Posted August 26, 2016 Thanks Nic!!! Much appreciated. I wonder if this is why it is working quite as expected?? (trac light flashing and no MANU mode?) Guess I will have to fit the correct one and see!!? Quote Link to comment Share on other sites More sharing options...
and1c Posted August 26, 2016 Author Share Posted August 26, 2016 My car went from auto mode not working correctly but manu mode working fine, to auto mode working perfectly but no manu mode and Trac error codes that I never had before!!! Culprit found I reckon... Quote Link to comment Share on other sites More sharing options...
Nic Posted August 26, 2016 Share Posted August 26, 2016 The U.K. Spec has bigger fuel injectors, don't try and use it on a j-spec. Quote Link to comment Share on other sites More sharing options...
and1c Posted August 26, 2016 Author Share Posted August 26, 2016 The U.K. Spec has bigger fuel injectors, don't try and use it on a j-spec. Cheers Nic. Its got a Link standalone and 800cc injectors (single turbo car). But the ECU is clearly not the right one! cheers mate Quote Link to comment Share on other sites More sharing options...
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