Just had an oil breather fitted to my series1, now the temp gauge has got a mind of its own, temp goes off the scale then back down again.
What is the reason for this ???
Cheers

 

could be a wire has been disturbed during fitment or the sender may have failed.

 

right sorry for the late reply been out watching the playoff final, but ive checked all th wires and they seem to be in contact. dnt want to sound out of place but where would i b looking for the sender???

 

front of the cylinder head, near cylinder 4, has a single wire to it.

 

Wire is earthing out somewhere (the temp sender)

 

how do i go about this fix???

 

The wire has a push on connector with a rubber cover over it just pull it off and follow the wire to see if theres any brakes along the line ,also check the connector itself just incase its gunked up with crap if that doesnt work try fitting a new sensor.

 

cheers for the help lads , connector was knackered.