What ECU is in my 1993 LS Teg and where is it at? I did a b18C GSR swap and am now trying to get the VTEC hooked up. I don't know what ECU i have. I found a Belt Warning Control in my passenger seat kick panel, but it doesn't have any identification numbers on it so i don't know if that's it or not. I have searched everywhere on the internet and everyone says that its a P74/75. I have found nothing that can identify it. Please help.