I haven't had time to work on the car lately. I do believe the DRP for me is a 0-5v square wave. I hope I can just split it. I just wanted you guys to know I appreciate the continued support. I...

Hopefully I can just split the signal between the two computers. I haven't looked that close at it yet, but I'll check on it soon. Thanks...

It is my understanding that the 165 will not drive 4 low impedance injectors nor will any GM ECU in factory form. The 7749 has been successfully modded to run 8 low impedance injectors. I don't...

Thanks for the info guys. The vette does have some weird communications between the CCM and the ECM and not many people understand it and therefore info is hard to come by. I think I even read...

Well, the original ecm also send signals to my electronic gauge cluster. I was also hoping the fans would come on when I turned on my AC. Yes it's possible with MS but I'm gonna run out of inputs...

I've dabbled with EFI for quite some time. I mostly play with GM stuff. Recently I chose to add a Megasquirt in parallel to my 7727 in my 91 vette. Over all it's working out but I've got some...

I installed a Megasquirt in my 91 vette. It controls fuel and spark but I was hoping my original ECM would continue to control the fans. The original ECM still has coolant temp input. Does anyone...