The codes popped up for the left sensor. replaced. About a week and a half later (about 480 miles); the abs light came on again. This time code for the right one. changed. Another 800 miles (I um, have a long commute) and the light comes on again.
Another mechanic (don't ask) tells me there's somethin' fishy going on here whilst he is working on the problem. The nasty part of this is that the abs sensor wires (both sides) worm into a rather large wiring loom just inside the engine compartment. On my car, anyway, that is one HUGE job to get into that loom and isolate the abs wires to the junction blocks. Perfectly suited to someone with 8 knuckles per finger, if you know what I mean. I'm going to tackle it when I can get near a hoist for a spell to make the (splice) job easier. It's been said this is a delicate (physically and regarding RF Interference). If that's true, why isn't it given a dedicated bus with shielded wiring...anyone?