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Torque » Torque OBD ECU Scanner » Torque Discussion / Ideas » 2002 chevy tracker 02 sensor

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Author Topic: 2002 chevy tracker 02 sensor
Posts: 1
Post 2002 chevy tracker 02 sensor
on: February 17, 2021 (GMT)

Using the”car scanner”with my lil blue adapter. I saw that I have an 02 sensor that’s bad. I can’t identify witch one to change. I’m not getting an dtc on my dash and have to get the car smogged ASAP.
Can anyone help with how to identify the faulty 02 sensor?

Diy with everything I’m so broke…

Posts: 2913
Post Re: 2002 chevy tracker 02 sensor
on: February 20, 2021 (GMT)

How do you know that your O2 sensor is bad?

Your scanner should identify which sensor it
is reading.

Bank 1 includes cyl. 1, Bank 2 does not.

Sensor # order from upstream to downstream.

Precat sensor should cycle frequently once heated.

Post cat sensor should be mostly stable.

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