Hello... welcome to TampaRacing... I have a TE72 (same as the KE)
I have done this before in my friends TE72. There is a signal missing to the ecu and there needs to be a jump in order to bypass the Manual Tranny "lock out" which is being mis-sent for the auto. Basically its a feature for the car "not to start" should the car be in gear and then lunge forward..
The issue is most likely along those lines... again, after having 8+ TE72s, 5 Ae86s- ive encountered this during swap n such....
thanks for joining.!
Feel free to use the Toyota sub section for parts sales and technical info like this.. I will be trying to churn things up some more in there..