Raja dear.....I don't have engine which attached with these ECU,s ......I was interested to buy a 5AFE engine so I have contact TO my cousin he have a 5AFE Engine with manual gearbox but when I look at the ECU so it have 89661-1E020 eco with two grips which was A/T ...but this engine was running fine very smooth....so I wants to know the auto ecu can work on manual gearbox.....he wants to replace engine with new 4AFE ......if I replace this auto ecu with manual on......so which one is best in above both ecu.....am I thinking right?