Porsche Club GB

O2 sensor codes

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

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHO2 sensor codes

Leading reported evidence

Replace just

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
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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 performed work without a confirmed outcome: 1

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

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Performed · outcome unconfirmed · Original poster
Also is it usual for one sensor to be replaced just for one that is not replaced to throw an error
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O2 sensor codes

Frequently discussed work

Check pre cat o2 sensor and noticed

No successful repair reported for this finding.

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Reported fixes: 0
Unsuccessful attempts: 1
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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 · Original poster
I'm in a quandary now, as I have just gone on there to check for a Pre cat O2 sensor and noticed that the date for the part I fitted was 09/01 "" 07/04 and was wondering whether the part I fitted was wrong?
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O2 sensor codes

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Leading evidence: 'Replace just' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check pre cat o2 sensor and noticed' (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.

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Check pre cat o2 sensor and noticed

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 · Original poster
I'm in a quandary now, as I have just gone on there to check for a Pre cat O2 sensor and noticed that the date for the part I fitted was 09/01 "" 07/04 and was wondering whether the part I fitted was wrong?
Original post Read captured discussion
O2 sensor codes

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.

Check pre cat o2 sensor and noticed

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 · Original poster
I'm in a quandary now, as I have just gone on there to check for a Pre cat O2 sensor and noticed that the date for the part I fitted was 09/01 "" 07/04 and was wondering whether the part I fitted was wrong?
Original post Read captured discussion
O2 sensor codes

Replace just

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that performed work without a confirmed outcome: 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.

Performed · outcome unconfirmed · Original poster
Also is it usual for one sensor to be replaced just for one that is not replaced to throw an error
Original post Read captured discussion
O2 sensor codes

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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.

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

Porsche Club GB: 1 discussions

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

POST 1 / ORIGINAL POSTEROriginal post

Just a quick question. I've replaced my post cat Lambda sensor with one of these , due to a P0160 code (bank 2 post cat issue), now the car is giving P0050 and P0154 errors (bank 2 pre cat issue). I'm in a quandary now, as I have just gone on there to check for a Pre cat O2 sensor and noticed that the date for the part I fitted was 09/01 "" 07/04 and was wondering whether the part I fitted was wrong? No errors on post cat sensor! My car is a 2005 C4S with and M96.03 engine. Also is it usual for one sensor to be replaced just for one that is not replaced to throw an error Any help appreciated. If the parts are interchangeable I'll get the pre cat sensor to go with it, otherwise I'll have to find the correct part. regards, Anthony

POST 2Original post

Welcome Anthony! Hmm. According to PET, pre and post cat sensors have a different part number. I would start by confirming that the one you fitted is the correct part. Very unusual to replace one, and then get a fault on the other, unless you distrurbed it in some way.

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