CHEVY O2 SENSOR

2002 Chevrolet Cavalier

Tiny

b.pedro.a

May, 21, 2008 AT 11:32 PM

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.

FOUND 166 RELATED QUESTIONS

1 Answer

Tiny

mhpautos

May, 22, 2008 AT 4:52 AM

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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