The Kerr Nelson brand sensor arrived this morning. Fitted it at lunchtime today, fully greased and pushed right up to the reluctor teeth and the abs and traction lights have gone out. The Kerr Nelson one is physically identical to the previous 2 sensors fitted apart from having a resistance of 1000 ohms. Maybe the system couldn't see the one with 950 ohms because it is at the lower limit of resistance - then again the nearside one reads 950 ohms as well - go figure. Let's see how this one lasts. Time will tell. Will try and get a refund from the "Landrover specialist" now for the duff one as it was supposed to be guaranteed