Justin689 Posted January 9, 2021 Share Posted January 9, 2021 (edited) Hi folks, Just wonder can I just remove a d disconnect the temperature sensor that is attached to the end of the Catalytic converter (figure 3, 6c). The exhaust temperature was introduced around 79-80 to Japanese market, which the car was imported from. I have a straight through pipe bought to replace this cat, can I just remove and disconnect the exhaust temperature sensor or do I need to weld a hold and attach the temperature sensor? many thanks, justin Edited January 9, 2021 by Justin689 Link to comment Share on other sites More sharing options...
SilverWT Posted January 9, 2021 Share Posted January 9, 2021 That is a Lambda sensor (oxygen sensor) on the end of the wire. It was/is connected to a sensor control unit (small black box under the nearside seat IIRC), this then controls the frequency Valve, which is a vibrating valve in the fuel line that controls the pressure in the fuel distributor, reducing/increasing fuel flow for improved emissions. It's a US, Canada, Japan thing. Have a search on Pelican for the best way to deal with it. I can't remember if you can just disconnect it, or if you have to make some mods. Mark Link to comment Share on other sites More sharing options...
Justin689 Posted January 9, 2021 Author Share Posted January 9, 2021 35 minutes ago, SilverWT said: That is a Lambda sensor (oxygen sensor) on the end of the wire. It was/is connected to a sensor control unit (small black box under the nearside seat IIRC), this then controls the frequency Valve, which is a vibrating valve in the fuel line that controls the pressure in the fuel distributor, reducing/increasing fuel flow for improved emissions. It's a US, Canada, Japan thing. Have a search on Pelican for the best way to deal with it. I can't remember if you can just disconnect it, or if you have to make some mods. Mark Thanks mark, was the oxygen sensor labelled 6A in the diagram? This one is at the position of 6C... Link to comment Share on other sites More sharing options...
Justin689 Posted January 10, 2021 Author Share Posted January 10, 2021 Maybe I just update this, it’s a Japanese market feature to use this sensor and monitor the exhaust temperature, EGT sensor. Just got confirmed from Japanese Porsche owner, simply remove the sensor and joint the wire, then the dash EX light will be off. http://forums.pelicanparts.com/porsche-911-technical-forum/389175-what-red-light-blinking-row-dash.html Link to comment Share on other sites More sharing options...
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