I have a 2003 k74 which has blown the ecu I am told this can be common my question is this. Is it just a case of swapping the engine ecu or will I have to swap other parts. Luckily I have found a complete truck for replacement parts

What's blow on the ecu.

U also need to swap the imobolizer ecu and ignition barrel and use them and the key from the donor vechile. U could swap the locks too if 2 keys bother you

Thanks do you know where the immobiliser ecu is located please

foot well behind the kick pannel, drivers side IIRC