Signal wire on Oxygen sensor???

[cruz-gsr]

hey i got the same problem where can i tap to the signal wire

[CTScott]

Originally Posted by cruz-gsr

hey i got the same problem where can i tap to the signal wire

The wires comes out of the floor under the carpet, about 6" before the gas pedal and goes into the center of the dash, under the hvac controls.

The Yaris uses a heated sensor, and has the signal floating on an offset voltage. A couple of months ago I pointed someone else to the wires and where to connect them, but his AFR gauge couldn't handle the offset voltage. Most gauges seem to want to be connected to their own sensor and not share the sensor with another device.