I'm looking through the Bentley at the o2 sensors, and I can't figure out what the difference is between the 3 and 4 wire sensors. They both have a signal wire, and 2 for the heater. There is no mention of what the #1 wire does for the 4 wire sensor.
The reason I'm wondering all this is because I wan't to know if I can use my existing sensor (3 wire from the eta) on the 'b25 (1987) that came with the 4 wire.
I've also read that there is a Mustang 5.0 sensor we can get, but it's only a 3 wire. So back to the original question...
Thanks.
The reason I'm wondering all this is because I wan't to know if I can use my existing sensor (3 wire from the eta) on the 'b25 (1987) that came with the 4 wire.
I've also read that there is a Mustang 5.0 sensor we can get, but it's only a 3 wire. So back to the original question...
Thanks.
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