95 Fed tracker with 4 wire 02 ?

[randy h]

I have a 95 Tracker, 16vlv, USA-FEd, and bought a 15701 (3 wire) Bosch O2 sensor. Got ready to change it and saw that the old sensor had 4 wires. The plug going to the ECM has four wires too. This is definitely NOT a California car. Did the four wire O2's come on 95 fed cars? Or do i have a some kind of anomaly, or am i just not understanding something?

Thanks
randy

[kick-fix]

its not an alnomaly.
the 4wires started in calif in 92 and became standard on all after.
the 4th wire is a very special ECU low noise , sensed ground ! (quality)
the old 3 wire is noisy manifold ground (dodgy is a good word for it. really).

i updated my 02 page to show this.
the Bosch web link will tell you what your car needs, few stores have a clue.


testing-Oxygen sensor


13071 is PNP ,best. Napa and fleebay have time for $45

[kick-fix]

oem suz pn for yours is.

18213-58B20 (16v only)

USED ON 2DR, AND 4DR 94-95

CHECK OUT ROCKAUTO FOR , correct pn and nice photos so you can see what you get before you buy.
look at the conn. it is unique or is missing a pin. (depends on year)

[randy h]

Thanks Jerry.
I tried that bosch link and it fails. So tried the website starting from its home page and tried jumping straight to O2 sensors and clicked the link on the right for part number lookup and the page asked for a login ID ! So then I went back to home page, and clicked find parts for your car link near bottom left, filled in 95 geo tracker and clicked the Choose part type drop down box and it doesn't list o2 sensors !!

I am just going to go with the part number you said. Thanks again.

[kick-fix]

I got zinged.
ouch they locked out the catalog. ! what a dirty trick. at Bosch , why ?


very good is Rockauto, shows all you that you need. wire count and valves and
pn, and calif or not.

besure to click more info to see photo and count pins.

1995 GEO TRACKER Oxygen Sensor