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Topic Which Catalytic Converter? |
Which Catalytic Converter? racyclist - Friday, 17 June, 2011, at 9:42:12 am |
Re: Which Catalytic Converter? mikefocke, '01S Sanford, NC - Friday, 17 June, 2011, at 11:49:24 am |
It is the 1st converter, the pre-converter. If you look at the exhaust system you can seen an O2... MarcW - Friday, 17 June, 2011, at 1:38:12 pm |
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racyclist
My 2001 Boxster will occasionally throw a 0430 code. It has never thrown any other code and I've checked out the graphs from the 02sensors and they appear to be working fine. My question is which driver's side catalytic converter is it?
The 97 - 99 cars have one catalytic converter right before the muffler and 02 sensors on either side of it. From 2000 on Porsche added a catalytic converter on the exhaust manifold with 02 sensors on either side of it and removed sensors from the catalytic converter closer to the muffler. I've always been told to replace the converter next the the muffler, but I don't understand how that would make a difference when the sensors are on the exhaust manifold. Am I crazy? It seems like the sensor should be before the first converter and after the second one.
Re: It is the 1st converter, the pre-converter. If you look at the exhaust system you can seen an O2... racyclist - Friday, 17 June, 2011, at 5:08:12 pm |
My info (Porsche though I can't recall the precise source of this info)... MarcW - Friday, 17 June, 2011, at 5:20:19 pm |
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racyclist
Thats for the replies, I almost made a costly mistake buying the wrong part.
It makes sense that the first converter is the one being tested, but it seems backward that Porsche doesn't test the bigger cat instead. In my state smog is OBDII testing only so I guess I'll never know if the second cat is bad. I suppose I shouldn't complain too much the smaller cat is cheaper at autoatlanta.
Mike, I bought the car without doing a PPI. It was so shiny, how could I go wrong? I immediately took it in for service and found out the AOS was "definitely bad". The car has 87k miles. I bought it just outside of emissions warranty at 82k.