I recently put a full exhaust on my 929, change valve shims and when I got done putting everything back I had no spark. After looking over the wires and connections couldn’t find nothing I pulled the harness out. I then re checked every wire and put the harness back in , still no spark but now I have no prime. I have 12v going to the coils and all through the black and white wire connecting all the fi components. My engine stop relay sends power to fuel cut relay but the pump don’t prime and there is no power going to fuel pump. The pump will prime when I use a jumper wire in the relay connecting the black and white wire to the brown wire going to the pump. I checked my timing and that is good. My zener diode was bad or so I thought because I tested it after I removed the harness and got 10 v but after order 4 packs of them I still could not get 9v by using 1 diode but apparently you have to put it in backwards , Anyway I just used a 12v to 9 v Adapter and I’m getting 9.3 volts at the ecu. Please please please help me I’m stumped!!!!!