O2 sensors

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Jul 7, 2019 | 11:17 AM

mrfeh

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Racer

Joined: May 2019

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O2 sensors

How many O2 sensors are there on a 996? Does anybody know how to monitor them via an OBD2 device?

I tried monitoring the SAE PIDs, but I didn't capture any data.

Thanks.

Jul 7, 2019 | 11:26 AM

808Bill

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From: Kauai

Four

Jul 7, 2019 | 11:56 AM

Mbren1979

Burning Brakes

Joined: Jul 2018

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From: Casselberry Florida

4. typically labeled H02S on aftermarket scanners. also will be labeled as what they are......B1S1, B1S2, B2S1 and B2S2 for Each Bank and upstream or downstream of the Cat

Jul 7, 2019 | 02:55 PM

Ahsai

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Quote:

Originally Posted by mrfeh

How many O2 sensors are there on a 996? Does anybody know how to monitor them via an OBD2 device?

I tried monitoring the SAE PIDs, but I didn't capture any data.

Thanks.

You need a Durametric to read their voltages. An OBDII scanner can only return mode $5 O2 sensor test data amd the short/long term fuel trims.

Jul 7, 2019 | 03:07 PM

mrfeh

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Racer

Joined: May 2019

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Quote:

Originally Posted by Ahsai

You need a Durametric to read their voltages. An OBDII scanner can only return mode $5 O2 sensor test data amd the short/long term fuel trims.

Thank you! Now I can stop looking for PIDs...

I guess I'll just rely on the fuel trim data.

Jul 7, 2019 | 04:47 PM

yelcab

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From: Bay Area on the Peninsula

Some more expensive Actron OBD2 scanner can read 100+ PID values real time, including the O2 sensors. They are easier to use than the Durametric but not as powerful. They read the values but do not graph it.

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