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Wanting a new pair of bosch 02 sensors with the correct 1990 plug on the end for correct fitment. Has anyone had any luck finding the best place to sorce these.in the uk. Apparently the bosch ones are the way to go as i hurd in the past that even oem ones are a lottory and the bosch seem to be the way forward.

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Worrying about O2 sensors is a massive waste of time.

 

So you saying that even bosch ones can play up and its just a lottory noel. In whitch case ill order them of mjp along with my pcv valves that ive already ordered today.

I did all the bosch o2 sensor thing the other week......lol

The upshot is that you can get a Bosch o2 sensor from various aftermarket suppliers, but they are universal ones...... I spent hours trying cross referencing them through the systems at work and all came back to a universal Bosch one.....

I have even contacted Bosch through my work as one of their suppliers, but not heard back before I went off work ill.......

I have temporarily had to stop looking due to bad health, in and out of hospital and being off work.....

Have a look at the info everyone supplied me on my O2 thread Spin...... Loads of reference numbers of O2 sensors fitted to Z's..... none of which were available through my work after cross referencing them......

http://www.300zx.co.uk/forums/showthread.php?179990-O2-sensors-OEM

Watching my Z disintegrate on my driveway!!!

Fairly simple device is the O2 sensor, not really vehicle specific other than wiring location in multi plug and multi plug shape, simple sensor and a heater, until you go up into the wideband group of sensors some of which actually have valves built into them to allow the sensors to breathe, some older sensors used to breathe up the wire insulation so splicing wires together wasn't wise, it's fair to say any O2 sensor will work as long as it's wired correctly and it's voltage signal is in sync with what the ecu expects to see.

O2 sensors on the 300zx are a huge waste of time worrying about. They're an emissions device incorporated to force a stoichiometric combustion at which point the cats (that we've all still got religiously fitted, of course) operate at their optimum resulting in happy tree huggers everywhere.

 

Massive waste of time. They don't work well in Zeds. Originals fail, replacements fail, aftermarkets fail, genuine ones fail. Nissan O2 feedback control is about 27yrs old, with AFR wandering between 14 to 15:1. My '05 WRX is pegged at 14.5:1 AFR during closed loop. With open-loop mapping you can program the AFR to whatever value you want. Rich idle gives a smoother engine operation, lean cruise is better on fuel at the expense of higher Nitrogen oxide emissions, resulting in sad tree huggers everywhere.

 

I did used to recommend fitting new O2 sensors, but given the apparent nose-dive in material quality, about 60% of Zeds are now mapped with the O2 sensors disconnected.

 

Humongous waste of time.

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