just replaced mine and omg the car feels soo much better cheers cn tuning for advise over the phone 

common problem these are

common problem and expensive as fook to because they are dual function..

temp to cluster and also to ecu for fueling ect

cars running so much better no more flat spots 

So what were the main issues you were getting then Terry?

well the ecu was thinking the engine was cold or hot so was fuelling all over the place lumpy idle too

Just in case people search the forums so they can spot the symptoms themselves. Glad it got sorted

thanks mate  

yep a well worth low cost part to replace to get decent fuel , air , temp proper running....

Multi functional switch.. a bad one causes awful running. Changed mine and the difference was great.. expensive for  a switch though lol.. the equivalent for bmw around 12 quid but they are single function

Blue for ecu

Brown for signal to cluster

 

These switches do both hence the price :-o