Ok so I just swapped over a 2000 1zz from an mr2 spyder into my Corolla, everything worked great on both cars. I’m using the 2zz from my 05 corolla xrs in the mr2. Here’s my problem when I went to start the Corolla (freshly swapped 1zz and 5spd from the Spyder) I was using the 2zz ecu I didn’t know I was not supposed to use this(this is my first swap ever)The car started it reved up to I’d say 2.5k n then died I asked questions and found out I was using the wrong ecu. Does anyone know what year or what part number ecu I should try using? I ordered this ecu(part number 89661-0Z043) I did the sync the key (I used the old key do I need a new one?) and the car will not start it only cranks I’ve read somewhere that the ecu can be full on key codes which doesn’t allow me to sync a key to it, is that true? If so can I reset it possibly? I am using the 2zz harness as well but I mean it started lol. So I think the harness is fine…. Any input would be greatly appreciated thanks!
What would need modification? I did have to extend it a little but that’s all. The car starts with 2zz ecu. The car won’t start with the 1zz ecu I’ve been using. I can’t use the 1zz ecu from the spyder cause the plugs are different. So I’ve been sourcing ecus from corollas. Both the spyder and corolla have immobilizers. The question is why is my new ecu not syncing to the key? I’ve done the procedure before and no luck? What do I do lol. Should I just get another ecu and assume mine is not right? I’ve read the ecu can only have so many keys synced to the ecu, could mine be full perhaps?