Hi Does anyone know witch wire is what on a 3 wire Lambda sensor for a 4wd Sapphire Cosworth ??? ( earth, live and sensor output).

Red ?

White ?

Black ?

 

normally,

Black Ref. (out)
Red Ref. (in) & Heater (+)
White Heater (-)


taken from

http://www.lambdasensor.com/main/mcolours1.htm

 

thanks

 

the above is 100% correct, thats where i got my replacement sensor from, a 12mm 3 wire titania which was checked against stus wideband sensor and was just as accurate as the original ford ones which are literally £100 more expensive

 

super...