Thread: O2 (Lambda) Sensors

I felt after all the mucking about, extra fuel costs, diluted oil etc tec it is way more sensible just to fit genuine ones, once, and suck it up. Can't remember but it was a bit of a difference in $$

JC

Originally Posted by bee utey

I have replaced D2 O2 sensors with non-genuine (Bosch 4 wire, suit Holden VS), no problems. The important thing to note is that O2 sensor wires are not solderable. I have tiny non-insulated crimps I use with glue lined heat shrink. Works just fine.

, thanks, well hopefully that may explain all the strange issues then, the wires took to solder fine etc, and I've heard from others this is the correct way.what was the reason?

JC

I just checked the Fault codes on my 1999 D2 V8 using Torque and got the following:


Does that mean I need new O2-sensors? If so, are both of them screwed or just one? Will faulty O2 sensors have any major negative effects? The car seems to be running fine to me. Fuel economy is about 18-20L/100km mixed driving and 13-14L/100km freeway.

I checked the prices for OEM vs genuine and the genuine ones are twice the price ($114 vs $214): Discovery 2 V8 Electronic Components at www.rimmerbros.co.uk

Search for Bosch part number 15175. The come in a black Bosch box, but they are identical to OE. They even have the land rover part number etched into the sensor.

I get them at amazon for between 50-60 USD.

Edit: oops I've already said this once on this thread. Sorry not trying to sound like a broken record.

I may be wrong but you mentioned replacing the MAF,Be aware that the 4.6 and 4 ltr are different,And when buying from the US i think they only had the 4.6 engine there,Someone here will know for sure.

We had 4.0 up until 2002. The MAF housing is bigger on the 4.6, so you cannot accidentally swap them. Interestingly enough, the sensor that screws into the housing is the same on 4.0 and 4.6.

(I took one apart on my 1999 and my 2003 for testing, because I didn't want to gamble on if it would fix my issue).

Look they are just a stock Zirconia sensor.
You are paying mightily for the plug.
I have bought Bosch universal sensors from a bloke in Miami and for about $40 AFAIR and crimped the wires on an M3 which runs a similar Motronic to D2 with great results.
Similarly I have fitted universal Titania sensors to a 14CUX with no problems.
There is no difference in the sensors. It is only the plug that you are paying for.

Regards Philip A.

I think this is the one although a long time ago.
084 O2 Oxygen Sensor Bosch 4W 1995 2003 BMW 525i 540i 740IL 740i 750IL M5 | eBay
Regards Philip A