i converted to obd 1 and i removed the sigal wire 02 sensor and i put the 4 wire in now on the air fuel gauge which wire do i connect it to...the 02 signal wire....one of the heater wires....or the other wire....i believe its the 02 signal but i jsut wanna be sure...with the motor out the car i wanna run the wires right.

 

The signal, otherwise the other one is a heated wires, then one power and one ground.

 

The white covered signal wire

 

thanks