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O2 sensor cel - 986 Forum - The Community for Porsche Boxster & Cayman Owners

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YOUR RESEARCHO2 sensor cel - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Leading reported evidence

Install combination of straight and 90degree spacers

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.

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
I have replaced the rear o2 sensors and fitted a combination of straight and 90degree spacers.
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O2 sensor cel - 986 Forum - The Community for Porsche Boxster & Cayman Owners

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Leading evidence: 'Install combination of straight and 90degree spacers' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Install combination of straight and 90degree spacers' (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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1 matching discussions · 2 captured posts examined · 0 partial discussions

Frequently discussed actions (1)

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

Install combination of straight and 90degree spacers

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
I have replaced the rear o2 sensors and fitted a combination of straight and 90degree spacers.
Original post Read captured discussion
O2 sensor cel - 986 Forum - The Community for Porsche Boxster & Cayman Owners

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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.

986Forum: 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: 20261027T035758Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hi I am running and have for the past 3 years 200cell cats. I have replaced the rear o2 sensors and fitted a combination of straight and 90degree spacers. I still get on occasions a cel for poor cat efficiency on bank 2. Wandering if that cat has deteriorated? Anyway, if I unscrew the sensor and tie it up with steel ties and then plug the sensor hole will this stop the cels or will it cause other cels and or poor running? Thank you

POST 2Original post

No, doing that will actually cause more CEL's; if you have a cat efficiency code, you need different cats........

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