Need guidance on TunerPro with 16197427 ECU on how to make Knock Sensor input deaf. Somehow there has to be a correlation between timing number in TunerPro and that read on the balancer with timing light. Took extra time to make certain number 1 cylinder was a Top Dead Center when installing graduated balancer and custom timing pointer. Previously with a carb and HEI distributor, the timing was just as it should be. With this EFI, the timing issue reared its ugly head. Suspect EMI/RFI interference. Howell harness, on run-in stand is limited in lengths. Not sure how much separation of wiring can be achieved. Don't know if its radiated or conducted interference. Don't know which wires and inputs are affected. Don't have de-pinning tool to disconnect select wires from ECU to isolate issue.

Would be nice to invoke thoughts from others on this forum. Your thoughts please.