I need to replace the wiring harness that runs to the ABS rear wheel speed sensors in my E36.
The stock wire is unlike anything I've seen in a BMW wiring harness. The voltage conductor is insulated pretty thickly with something like PVC, and then the ground conductor is wrapped around that insulation at a very low rate of twist, like just a few wraps per inch, and another PVC-ish layer sheathes that as the pair. And it's not bundled in with any of the harnesses that run to the trunk. Just the two leads by themselves, taking a completely different route to the dash.
I think I understand why each sensor has its own ground lead. Because the signal is magnetically induced, it doesn't have that much voltage, and ground loops might wash it out. Right?
Is there any reason I can't replace it with twisted pair 22 AWG solid copper wire with Teflon insulation? My logic is, that stuff is the backbone for CAT 5, so it must be pretty good at small signals without getting noised up.
