911uk

Fault Code and CEL

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

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

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YOUR RESEARCHFault Code and CEL

Leading reported evidence

Replace oxygen sensors

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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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
O2 sensors were replaced when TopGear 200 cell cats where fitted in last 3000 Miles.
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Fault Code and CEL

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Leading evidence: 'Replace oxygen sensors' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace oxygen sensors' (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.

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1 matching discussions · 5 captured posts examined · 0 partial discussions

Compare 3 other evidence results

Run normally

Performed · outcome unconfirmed

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
Was heading home from PCGB meeting last night, 10 mins into drive home on a chilly evening, had just had a blast down some A-roads and onto the motorway when I came into a 50mph zone, clicked on the Cruise and the CEL came on in Orange but car ran normally.
Original post Read captured discussion
Fault Code and CEL

Run issues is if its blocked

Suggestion or failed attempt

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
Only way a Cat will cause running issues is if its blocked ..
Original post Read captured discussion
Fault Code and CEL

Run of the car

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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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 know that this is the secondary post-cat O2 sensor throwing up the code hence no effect on running of the car.
Original post Read captured discussion
Fault Code and CEL

Frequently discussed actions (4)

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

Replace oxygen sensors

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
O2 sensors were replaced when TopGear 200 cell cats where fitted in last 3000 Miles.
Original post Read captured discussion
Fault Code and CEL

Run issues is if its blocked

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
Only way a Cat will cause running issues is if its blocked ..
Original post Read captured discussion
Fault Code and CEL

Run normally

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
Was heading home from PCGB meeting last night, 10 mins into drive home on a chilly evening, had just had a blast down some A-roads and onto the motorway when I came into a 50mph zone, clicked on the Cruise and the CEL came on in Orange but car ran normally.
Original post Read captured discussion
Fault Code and CEL

Run of the car

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 know that this is the secondary post-cat O2 sensor throwing up the code hence no effect on running of the car.
Original post Read captured discussion
Fault Code and CEL

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.

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

911uk: 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: 20261026T165820Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Was heading home from PCGB meeting last night, 10 mins into drive home on a chilly evening, had just had a blast down some A-roads and onto the motorway when I came into a 50mph zone, clicked on the Cruise and the CEL came on in Orange but car ran normally. I've got an Android Head Unit with the Torque App And a Bluetooth OBD dongle so scanned for fault codes and came up with P0430 - Catalyst System Efficiency Below Threshold Bank 2. Cleared it and it didn't come back on. I know that this is the secondary post-cat O2 sensor throwing up the code hence no effect on running of the car. O2 sensors were replaced when TopGear 200 cell cats where fitted in last 3000 Miles. Recently had stainless manifolds fitted in case that's a pertinent bit of info. My limited research says don't worry and monitor it but I'm headed out to the Ring in a week's time and don't want any reliability nigglesnin the back of my head!

POST 2Original post

Just keep your eye on it but should be fine. You might want to record data on your head unit for both banks and compare over time.

POST 3 / ORIGINAL POSTEROriginal post

Ta Alex - think there's a menu where I can monitor and log O2 voltage in real time. Will do that and hopefully get some insight as to whether it's a sensor fault, cat fault or just a blip.

POST 4Original post

Save the planet stuff with the Cat being the most likely cause .. its not getting fired up as quick as the other bank . Only way a Cat will cause running issues is if its blocked .. misfire .. fuel igniteing in the cat and melting it etc etc .

POST 5 / ORIGINAL POSTEROriginal post

Ta - will keep an eye on it and not worry about it then :thumb:

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