[Funracer]

Originally Posted by AndrewCologne

(sometimes with heat-shrink that still lets the wire breathe).

I have changed my O2 sensor several times. Always use a butt crimp. But I have been
using generic heat-shrink over the crimp for several inches either side to tidy it up.

Is there a special type of heat shrink required? Or is no heat shrink better?

Thanks Andrew