I got "Abs/ Traction failure" today. Nanocom read the fault as "normal rotation on all wheels, incorrect air gap on RHF sensor". The rubber boot on the sensor needs replacing, but I've been nowhere near that corner for a long while, so nothing's been disturbed. I was off on a drive, so all i've done so far is give the sensor a bit of a tap with a hammer to check it was seated properly, nada.... I'll pull it out tomorrow and give it a bit of a clean, and maybe blast the port with air. Any other thoughts? If spring cleaning doesn't work then I'll prob end up getting a replacement sensor.