I did everything to the letter
I just installed the EZ-EFI system into my 67 camaro and followed the directions to the letter, the only problem that I'm having is that the ECU power light is not coming on when I have the switch on the on /run crank position, I've gone over the wiring 4 times and everything is perfect and "Comm Error" keeps coming on after I put in the Basic Parameters into the handheld, my question is can my ecu be defective or is there something that I might be overlooking