Can someone lend me a hand with the knock sensor wiring please. The wire has sheared off right at the connector to the pass side knock sensor on my 04 Discovery. I sourced a connector with some wire on it from a vendor here so I can splice it to the original wiring. From what I see there is only a single cable heading to where the knock sensor goes but the sensor itself has 2 wires. The used one I sourced was all taped up so removing the tape revealed what you see on the photo.

What is the proper wiring for this? Should there be 2 wires from the harness to the knock sensor?

 

It is a coaxial cable with a center conductor and a shield. You can't splice coaxial cable and keep the shield intact and functional. The shield blocks electrical interference from wiping out the low voltage signal from the knock sensor.

If the shield is not intact, well you know the result. I doubt if the tape was acting as a shield. If that is the replacement you paid for, I'd ask for your money back.

Best to just replace the whole cable back to the harness.

 

+1 on what Dave said. Get your money back and find a intact cable anything less is just wasting your time. I'm work in the electrical field. There is a reason why the factory shielded that wire.

 

that's normal looking.

i have a spare connector and it looks just like that. the coax is not shielded once it connects to the black wire.