update. went for a quick drive Saturday morning an pulling into my driveway the ABS light came on. Hopefully related. No codes. ? Sunday morning pulled the driver side wheel which is where I suspect the problem due to it pulling to that side a little. Pulled the rusted rotor off and replaced the sensor from an original wheel bearing that was good. The aftermarket had a lot of shims on it. Did not put them on the new one. Erased the ABS light. After a quick drive it is a lot better. not 100% but enough to be happy with. Started it up yesterday and ABS light came on immediately.. No codes and erased it again. Drove about 20 miles shut it off. 15 or so minutes later. started it up and ABS on again. WTF. left it on and about 5 miles later it went off and did not come back on. Drove for 40 minutes. shut it off. 3hrs later start up and no light. Drove an hour home and still good. Must have been the sensor. IDK.