Pelican Parts Forums

Pelican Parts Forums (http://forums.pelicanparts.com/)
-   Porsche 911 Technical Forum (http://forums.pelicanparts.com/porsche-911-technical-forum/)
-   -   Disconnected oxygen sensor (http://forums.pelicanparts.com/porsche-911-technical-forum/960773-disconnected-oxygen-sensor.html)

Tleos84 06-19-2017 05:32 PM

Disconnected oxygen sensor
 
I have been driving my 1984 911 for four years without any problems. I decided to replace the O2 sensor and I found that it was not connected. I am unable to find the connecting wire that comes from the harness. Does this make any sense? The car had been fitted with an aftermarket dual exhaust by the previous owner.

Any help would be greatly appreciated.

Lake Guy 06-19-2017 05:36 PM

I understand the cars run fine without this sensor connected. I disconnected mine and put a wide band o2 sensor in the bung. Runs the same.

DaveMcKenz 06-20-2017 03:26 AM

The car will run pretty much the same without the O2 sensor. It may run a little richer throughout the RPM range. This may give slightly better performance, and slightly worse fuel economy. I run without my regular O2 sensor also, and use my wide band for engine monitoring, just like Lake Guy.
Good luck,
Dave

Steve F 06-20-2017 04:36 AM

I have to ask, as I too, have mine disconnected, but does anyone know if this will effect the smog test that I soon have to do?:confused: 1981 SC

proporsche 06-20-2017 04:58 AM

Hi Steve..to pass the smog test you have to have it connected and in working condition.After the test you can again disconnected..

Ivan

Steve F 06-20-2017 05:07 AM

Thanks Ivan.

PatrickS 06-20-2017 05:29 AM

While hunting down a running issue, I disconnected the O2 sensor and have not tested it nor replaced it as yet, smog tests are no longer required in MN. I decided running a little rich was better than lean, and I'm okay with the fuel consumption numbers that I'm seeing. To my understanding, the O2 sensor has a larger impact on newer models than our '84s.

nene 06-20-2017 07:03 AM

I have run several smog test in CAL without connecting my O2 sensor in my Carrera and it
has always passed.

proporsche 06-20-2017 07:36 AM

hi nene..interesting..i would not mind to see the smog results when you go for tests.
Maybe they, DMW have changed the requirements?

ivan

nene 06-20-2017 12:58 PM

If I find them I will upload them, but according to the tech, all was fine.


All times are GMT -8. The time now is 06:18 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2025, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2025 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website


DTO Garage Plus vBulletin Plugins by Drive Thru Online, Inc.