Made the swap in my 96 camaro from obd2 to 1, could do the resistor mod but would rather not and even if I did my pcm is missing it's knock module so I need one either way. I called the dealership they can get it for about $140 but would have to wait a while for it to come in I'm not to patient so I'm asking around and will search the junkyards before I go that route.