Rennlist

O2 sensors

Add to repair workspace

New repair projectOpen repair workspace

Original source

6 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHO2 sensors

Leading reported evidence

Test data amd the short/long term fuel trims

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion
An OBDII scanner can only return mode $5 O2 sensor test data amd the short/long term fuel trims.
Original post Read captured discussion
O2 sensors

Read full discussion summary

Leading evidence: 'Test data amd the short/long term fuel trims' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Test data amd the short/long term fuel trims' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.

Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.

Read captured replies

1 matching discussions · 6 captured posts examined · 0 partial discussions

Compare 1 other evidence results

Use than the durametric

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion
They are easier to use than the Durametric but not as powerful.
Original post Read captured discussion
O2 sensors

Frequently discussed actions (2)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Test data amd the short/long term fuel trims

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion
An OBDII scanner can only return mode $5 O2 sensor test data amd the short/long term fuel trims.
Original post Read captured discussion
O2 sensors

Use than the durametric

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion
They are easier to use than the Durametric but not as powerful.
Original post Read captured discussion
O2 sensors

Coverage and how to read this overview

Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.

6 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

Rennlist: 1 discussions

0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.

0 acknowledgements have no verified action link; they do not establish a repair result.

Generation: 20261026T174436Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

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.

POST 2Original post

Four

POST 3Original post

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

POST 4Original post

Quotes source post: 15956986

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.

POST 5 / ORIGINAL POSTEROriginal post

Quotes source post: 15957303

Thank you! Now I can stop looking for PIDs... I guess I'll just rely on the fuel trim data.

POST 6Original post

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.

This is a source reference. Confirm exact model applicability in the original material.