How many wires does the O2 sensor use. 3 or 4? I really need to get a book for the lude but havent gotten a chance to get to it yet.

Thanks in advance.

 

Anyone???

 

*sigh*

 

It's a 4 wire sensor, but a 3 wire sensor could be used. The only difference between a 3 wire sensor and a 4 wire sensor is that on the 3 wire sensor the heater and signal wire share the same ground. On a 4 wire sensor they have seperate grounds.

 

Thanks..