So what's the latest on cheap 02 sensors? - 986 Forum - The Community for Porsche Boxster & Cayman Owners

larez2 · 08-04-2007, 06:56 PM

When I use the Renntech DME 7.2 Engine code search this is what i get (same thing for both):

P0153 = Ageing of oxygen sensor ahead of TWC, bank 2
P1276 = Ageing of oxygen sensor ahead of TWC, bank 2

TWC = Three Way Catalytic Converter

So your codes are for the o2 sensor before the catalytic converter on the driver side.

I've attached a picture of where it is on my car which is a 99' so the exact placement of your's might be different.

I've also attached a picture of the connector. There are a tabs on each side of it that keep the connector locked, some guys say that you can carefully lift the tabs to slide the connector off, I wasn't able to, i had to break them off with a small flathead screwdriver.

Good Luck,
Larez2

Paul · 08-04-2007, 08:11 PM

#4 is a spark plug coil.

Paul · 08-04-2007, 08:14 PM

Are you sure that is a picture of a Boxster motor? That oil fill tube is on the wrong side.

Tool Pants · 08-04-2007, 10:25 PM

I have had a problem with the sensor on bank 1 after the cat for 8 years. If you include the original sensor, I am on my 4th Bosch sensor. The other 3 sensors are original on my 1997.

Either I have had 4 bad sensors or I have a bad cat. Have not had the time to rule out one or the other.

I think it is just another bad sensor. This time I bought a Walker sensor from ebay for about $110. No more Bosch for me. Walker does not make a universal one for the Boxster. My Walker has the same connector as the Bosch units.

Have not had time to put in the Walker, so I have no report.

blinkwatt · 08-04-2007, 11:21 PM

Quote:

Originally Posted by Paul

Are you sure that is a picture of a Boxster motor? That oil fill tube is on the wrong side.

Good eyes!

Perfectlap · 08-05-2007, 09:49 AM

Tanks Larez, I couldn't find a photo of where the 02 sensor was. I'm going to replace it with my indepedent mechanic. I cleared the CEL and it didn't come back but I'm ordering the sensor (pre-cat left) from oxygensensors.com. The Walker is $110. Considering buying the socket with hole in it.

The pic is from the Boxster motor. Maybe there is a mistake in the diagram. Sounds like from Toolpants there are many errors in the stuff Porsche puts out.