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Tech Question - Replacing Lamda / O2 Sensors

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

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHTech Question - Replacing Lamda / O2 Sensors

Leading reported evidence

Replace 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
As they were relatively cheap I replaced both the sensors.
Original post Read captured discussion
Tech Question - Replacing Lamda / O2 Sensors

Frequently discussed work

Replace do they need

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
Has anyone here replaced the lamda/02 sensors?, I have one that needs replacing, do they need to be done in pairs?
Original post Read captured discussion
Tech Question - Replacing Lamda / O2 Sensors

Read full discussion summary

Leading evidence: 'Replace sensors' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace do they need' (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 · 3 captured posts examined · 0 partial discussions

Compare 2 other evidence results

Replace do they need

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
Has anyone here replaced the lamda/02 sensors?, I have one that needs replacing, do they need to be done in pairs?
Original post Read captured discussion
Tech Question - Replacing Lamda / O2 Sensors

Replace lamda/02 sensors?, i have one

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
Has anyone here replaced the lamda/02 sensors?, I have one that needs replacing, do they need to be done in pairs?
Original post Read captured discussion
Tech Question - Replacing Lamda / O2 Sensors

Frequently discussed actions (3)

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

Replace do they need

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
Has anyone here replaced the lamda/02 sensors?, I have one that needs replacing, do they need to be done in pairs?
Original post Read captured discussion
Tech Question - Replacing Lamda / O2 Sensors

Replace lamda/02 sensors?, i have one

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
Has anyone here replaced the lamda/02 sensors?, I have one that needs replacing, do they need to be done in pairs?
Original post Read captured discussion
Tech Question - Replacing Lamda / O2 Sensors

Replace 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
As they were relatively cheap I replaced both the sensors.
Original post Read captured discussion
Tech Question - Replacing Lamda / 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.

3 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: 20261027T035758Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hi, Has anyone here replaced the lamda/02 sensors?, I have one that needs replacing, do they need to be done in pairs? & any idea of cost/best place to buy?.. BrumBrum :thumbs:

POST 2 / ORIGINAL POSTEROriginal post

add: Would duff sensors also affect overall performance?

POST 3Original post

Eurocarparts is much cheaper than OPC but I got original Bosch ones from www.forestfine.co.uk and they were even cheaper than Eurocarparts. As they were relatively cheap I replaced both the sensors. Duff sensors might still be working within parameters not to light the engine management light. However, it can affect the fuel trim that can affect performance and fuel economy slightly. They don't need to be replaced in pairs but by 100k miles they can switch slower than they originally do.

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