Mysterious connector - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Smallblock454 · 06-06-2021, 02:45 PM

Car is a 2003 ROW 986.

On the left side of the trunk is a fuse box (fuse box 2). In my car this connector has 2 cables.

Made a foto but found a better one on the web.

Does anybody know what that connector is for?

Thanks

edc · 06-07-2021, 04:51 AM

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porschefan76 · 06-07-2021, 04:55 AM

Hi! In my Bentley manual, on page 97-12, it's listed as Oxygen Sensor Test Harness. Attaching pic below:

Hope that helps!

Smallblock454 · 06-07-2021, 08:40 AM

Thanks a lot porschefan76!

Didn't know that there is an additional port for an oxygen sensor test harness.

porschefan76 · 06-08-2021, 05:22 AM

Quote:

Originally Posted by Smallblock454

Thanks a lot porschefan76!

Didn't know that there is an additional port for an oxygen sensor test harness.

No problem at all! I didn't know it existed either until you asked the question. I did a little internet searching but couldn't find any information on how to use the port.

JFP in PA · 06-08-2021, 06:30 AM

When the port is connected to the Porsche diagnostic tool, you can graphically see the voltage curves and response for all of the O2 sensors in real time