zappiros

It would be the one closest to the muffler.

The terminology is that the sensor before the cat is closest to engine and measures the bad gases - and the sensor after the cat should be seeing cleaned up gases.

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Thanks Loren, you are an open book!

That would be cylinders 4 to 6 - which would be the passenger side of the car.

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Ok Loren I have one more question..., please forgive me but english it is not my nature language and I am a little confuse with the o2 Sensors location..

Please let me know where is located the O2 sensor BEHIND the catalytic converter; This one is the one located between the catalytic and the end of the exhaust system (tail) part # 993 606 118 01....? or the one located between the catalytic and the engine part # 993 606 128 01...? thanks a lot

DC

THANKS LOREN!!!!

I have this trouble code: P1121 Oxygen Sensor Heater 2 Behind the Catalytic Converter - Below Lower Limit Value

I need to know wich O2 sensor is the one That I have to change...?

thanks

I have a friend in my country, that experience the same problem, it was a metal noise under the front, only when the car warm up, I heared myself.... the Porsche dealer take the car and dissassembled the front completely, and they found loosing welding on some points of the chassis or the front body, they welded again and the problem was solve, but my friend return the car to porsche because he doesn't want it anymore, hope this helps

WOW! loren thanks, you always answer my questions, where did you learn so much.... you should teach at Porsche.... :)

Somebody Know wich one is the relay for the Secondary Air Injection Pump and the fuse for it??? thanks

David

As far as I know the only way to not get the CEL after removing this would be to reprogram the DME.

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Dera Mr Loren, thanks for your response, I got the PST2 System tester, do you know wich reprogrammation has to be made to the DME??? thanks

David

Hello does anyone have ever triyed to remove the Secondary Air Injection System pump? I live in a country with no emision regulations and this pump is lighting my engine light from time to time, so I want to get it out, do I have to do modifications??? or just disconnected... thanks

please somebody knows the porsche Titanium Metallic code, thanks