DME code P0160

[andymac]

Haven't checked the codes in my car for a while but checked it with my Durametric today and found this :

P0160

Porsche fault code 20 - O2 sensor behind CAT.conv.

Bank 2

Car has been running fine and still does but has had a little occasional misfire on idle when warm??????

Could this of been the cause?????

Whats best course of action ? Replace sensor ?

Any tests?

Just to add

The occasional misfire was on cylinder 5 which I believe is bank 2.

Plug and coil was changed but made no difference

[Loren]

Not likely related to the misfire.

P0160 20 Oxygen Sensor After TWC, Bank 2 – Open Circuit

Possible fault cause

- Open circuit in signal wire or ground wire of oxygen sensor

- Oxygen sensor heating faulty

Check the wiring connector for breaks or corrosion.

Check resistance between pin 1 and 2 towards the oxygen sensor - should be 9 to 10 ohms at 10 degrees C.

If the wiring is good then replace the sensor.

[andymac]

With the Durametric software, what boxes shall I tick so it can monitor what the sensor is doing and log it.

There's lots of boxes and I'm not sure what ones I need to look at

[andymac]

Done some datalogging and found this. Appears the 02 sensor on bank 2 has no resistance? Does this confirm its faulty?

O2 sensor resistance behind cat bank 1 = 0.99 to 1.00

O2 sensor voltage behind cat bank 1 = 0.88 to 0.89

O2 sensor resistance behind cat bank 2 = 0 to 0

O2 sensor voltage behind cat bank 2 = 0.69 to 0.74

Edited February 23, 2009 by andymac