Just to clarify with my engineering background - a single wire coiled up exhibits some inductance. A pair of wires twisted together has some inductance, but the huge benefit is the mutual inductance between the two wires that cancels out electrical interference (noise) from outside the pair of wires. The best way to reduce the influence of outside noise is to shield the wires with a separate tubular (braided) shield. But twisting is cheap (free) and works on many circuits with very low amount of signal on them, like the ABS sensors. Just a bit of detail on WHY twisting is a useful tactic.McGMT said:...The wires coming from the WSS's (+ & -) were twisted, or coiled together. This created resistance in the wire itself. When serviced, these wires had to be rebuilt including the same number of twists as was put in it from the factory or it would fail its self test and set a code with the EBCM. Check out a TSB or GM repair manual on a mid ninetys passenger car, it will tell the tech to make sure there are X number of twists in the sensor wire....
I didn't know the NUMBER of twists was ever measured and could cause a diagnostic failure. Cool.