2002 CHEVY CAVALIER O2 SENSOR

  • Tiny
  • b.pedro.a
  • 2002 Chevrolet Cavalier

Electrical problem
2002 Chevy Cavalier 4 cyl Two Wheel Drive Automatic

I just installed a new o2 sensor " for the 2nd time" the one nearer the motor, now I am getting all type of odbII codes. &Quot; and the track off light now comes on where before only the engine light was on"

o2 circuit no activity (bank 1 sensor 1)

o2 circuit malfunction (bank 1 sensor 1)

o2 heater circuit malfunction (bank 1 sensor 1).

my question is how can I fix this?

thank you.

Wednesday, May 21st, 2008 AT 11:32 PM

1 Answer

  • Tiny
  • mhpautos
  • Expert
  • 29,842 posts

Hi there,
I would be trying a new O2 sensor as I feel that the one fitted is faulty or the loom plug is defective.

Mark (mhpautos)

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Thursday, May 22nd, 2008 AT 4:52 AM

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