el10034

Hi, i am a new member and looking for some help here on replacing ecu. i am planning to put in a 03 ecu to my 00 s2000. i have read some posts in the forum ,and noticed that i need to take my car back to the dealer to get a new key. i was just wondering if that means replacing the immobiliser ? and not the key ?
so if i am not using the stock alarm&immobiliser, i do not need to go back to the dealer ?

thanks ! sorry if i asked a stupid question, i am a newbie to this.

fitchsoccer342

you need the vin# from the new ecu, then take your car to honda with your new pcm and all your keys your your S and they can do it there. cost like $150, just had mine done.

el10034

hi, yes i know i need the VIN and get the keys back to the dealer to reprogram. i was asking what if i am not using the stock immobiliser ? do i still need to reprogramm the keys ? or the immobiliser is sticked inside the ECU ??

onfire01

Its inside the ecu

umair_k

did the same earlier. Your car keys, Vin number, Vin number of the 03 model car, new ECU and thats it.