Mechanics

CHEVY O2 SENSOR

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.
Avatar
B.pedro.a
May 21, 2008.



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)

Mhpautos
May 22, 2008.