O2 sensors with Ron Francis factory five wiring harnesses

[cobrafern]

Are you guys installing the o2 sensors with the Ron Francis wiring harnesses from factory five . Where are you mounting the sensors on your side pipes . Thanks

[Boydster]

The standard RF harness that comes with the kit doesnt touch oxy sensor wiring. That would be part of your fuel injection control harness for whatever system you're using. And usually that manufacturer states how their system likes the sensor installed.

[Itchief]

I’m using the MSD atomic EFI and installed the O2 sensor near the end of the number 4 header tube.

Ten thousand miles later the motor runs great and so far no issues with the EFI

Good luck

Rick

[Papa]

Like the others already mentioned, the O2 sensor is part of your EFI wiring, not the Ron Francis harness. I opted for 4 into 1 into 4 headers with the double collector and O2 bung.