Question about shielded wires

[dweinberg01]

If a shielded wire has been cut, do I have to get a whole new piece of wire to run, or can I splice the three wires inside together, wrap shielding around it (that is if I can find the shielding) and then wrap the whole thing in shrink tube?

[dntsdad]

for like a knock sensor or something?

I would just solder it back together (the inside), heat shrink it, and then give it a few wraps with aluminum foil and zip tie it, and then heat shrink all that.

All that it for is so that you do not leak RFI. Same concept as your RCA cables that runs in your stereo systems, or video cables.

Whatever circuit that wire is for though, when you finish your work and IF you get a check engine light, you know the place to look first but I think that you will be fine.