Lambda Zirconia / Titania oxygen sensors general information .

1) count the number of wires on the original sensor either 1 2 3 or 4 wire .

2) check the colour of the wires .

a) if the sensor has black , grey purple or white wires it is a Zirconia sensor .

b) if the sensor has one red wire with the exception of some Japanese vehicles it will be a Titania sensor .

4) Zirconia and Titania sensors are NOT interchangeable .