Hi Ray

Thanks for the reply

Just a bit more info having just done a bit more research

I had the vehicle hot and then disconnected both sensors, the rear one read 46 ohms, then checked 30 seconds later and it was 26 ohms, after a minute it was down to 16 ohms the same as the front one. I have found out that they flag a fault if the sensor resistance goes over 30 ohms?

I will have to check again Monday when he is back, I thought the higher reading was me being a bit ham fisted in a restricted space

Does this make any sense?

Peter