I've had success with the Bosch generic replacement for O2 sensors. The
downside is that you have to cut the connector from the old sensor and
splice it to the new one. The replacements I've used come with the splices,
and are available at major parts chain stores (BAP, NAPA). Look at yours and
count the wires to ensure you get the right type.
Right now, I have the one, black and green wires on the o2 sensor. I have
the Bosch and it's not helping my fuel consumption! So you are saying I
should have kept the connector (grey) and the wires? I guess I will have to
buy the OEM part now?
About the only difference between the OEM and generic sensor is the
connector. You will get a check engine light long before you will notice a
increase in fuel usage. If you are using too much fuel it will make the
sensor look bad but the cause is not the sensor and it will burn out the
converter. Proper diagnosis is needed, not parts guessing....
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