P0140 Error Code

[bigfoot007]

I have just got a P0140 error code = Oxygen Sensor After TWC, Bank 1 - Open Circuit, so I will have to get a new sensor, but I need to know which side of the car is bank 1.

I know the part number is 955 606 136 01, but I find two types of sensors with different sockets.

http://www.123pieces...0606%20136%2001

or

http://www.123pieces...ms_per_page=10

So does anyone know which one to use?

MY03 Turbo

[hahnmgh63]

Left side is Bank 1

[bigfoot007]

Left side looking from the front I assume.

[Loren]

No, left side as you sit in the car.

And P140 is the sensor after the cat.

[bigfoot007]

Thanks Loren for clearing that up, others say left is the oil cap side

Edited February 27, 2012 by bigfoot007

[bigfoot007]

So next question is:

Has anyone done this change of sensor? if so how easy is it.

Looking at the service manual its shows to be fairly straight forward.

[hahnmgh63]

Here AutohausAZ has the OEM Bosch units for $119.25

http://www.autohausa...1417935@CAYENNE TURBO&year=2003&cid=19@Emission System&gid=5132@Oxygen Sensor

Fairly easy to get at from underneath, the aft O2 sensors are between the pre-cats & the main cats. Tie a string or piece of wire to the old sensor and pull it up from the top then fasten the new sensors connector to the bottom of the string so you can pull it up from on top. You may have to wiggle it and guide it a little bit to keep it from catching on things, sometimes helps to tape up the end of the connector so it is less likely to catch on things as you pull it through.

[bigfoot007]

Thanks for the link, but by the time I pay for the P&P + tax, it works out dearer than her in Switzerland!

Like the idea of using a bit of string.

[hahnmgh63]

Sorry about that, didn't notice the location. If you can go to a Bosch retailer there you might be able to get it cheaper, the Bosch short # is 16498.