Really Need Help Please

MacRS200 · July 12, 2005

If any one read my post at the weekend on removing the pre cats from my Tezza you will know that one of the O2 sensors is knackered. I think that the threads inside the pipe melted.

Anyway need to get new ones and there are two different part numbers for O2 sensors on the auto RS200. Both of the ones that I took out looked the same so I only got the part number off one and can't get in to check the other without taking the pipe off again

I cannot find a sensor after the main cat so can only assume the sensors that were before the pre cats are different in some way

Can anyone confirm PLEASE

TIA Neil

Zee007 · July 12, 2005

My Manual RS only had one o2 sensor (in the manifold). I replaced it not long ago. Can check the part number for you tonight if you like?

MacRS200 · July 12, 2005

My Manual RS only had one o2 sensor (in the manifold). I replaced it not long ago. Can check the part number for you tonight if you like?

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Thanks Zee

Am I right in thinking that you have no o2 sensor after the main cat then?

Zee007 · July 12, 2005

Thanks Zee
Am I right in thinking that you have no o2 sensor after the main cat then?

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Correct - none that I am aware of.

MacRS200 · July 12, 2005

Think I may have sussed it.

The bosses for holding the sensors are at different angles, one is square on to the pipe the other is angled at about 60 degrees (See pic below). I presume that the sensors as different lengths to compensate for the change in angle. Just need work out which one was a 90 degrees and buy two of them I guess :duh: