911uk

Porsche Boxster S 968 P1128 &P1130 Idle Range Fault Co

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

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHPorsche Boxster S 968 P1128 &P1130 Idle Range Fault Co

Leading reported evidence

Replace however

Suggestion or failed attempt

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 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
OAS not the easiest to replace however when the new one arrive I stripped the old unit out and found the bottom bellow hose had split.
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Porsche Boxster S 968 P1128 &P1130 Idle Range Fault Co

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Leading evidence: 'Replace however' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace however' (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 · 3 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.

Replace however

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
OAS not the easiest to replace however when the new one arrive I stripped the old unit out and found the bottom bellow hose had split.
Original post Read captured discussion
Porsche Boxster S 968 P1128 &P1130 Idle Range Fault Co

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.

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

Outcome without a verified action link
No change
Original post Read captured discussion
No unique explicit quoted action; no causal link assigned

Generation: 20261026T181445Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Having read many issues to resolve my Porsche Boxster S 968 engine fault codes P1128 & P1130 O2 SENSING ADAPTION LEAN at IDLE RANGE Banks 1 & 2 I finally found the issue The MAF sensor was my first replacement as I can never understand why it runs at 15 to 20 degC above ambient. No change As the O2 fault was common to both banks I left the O2 sensors alone ( tried to remove one but the thing wouldnt budge and feared more damage than it was worth . I replaced the filler cap as well as the filler vacuum as many threads suggested a system vac leak was the probable cause. Having changed out the OAS over a year ago I have previously discounted this as a cause. Decided to replace again as a final option before the expense of a dealership fix OAS not the easiest to replace however when the new one arrive I stripped the old unit out and found the bottom bellow hose had split. After all the hassles I now have a clean and healthy 968. I hope this helps others in a similar position

POST 2Original post

Congrats on finding the fault, these things can drive you potty, when you say Boxster S 968 do you mean 986?

POST 3 / ORIGINAL POSTEROriginal post

Porsche Boxster S 986 P1128 &P1130 Idle Range Fault Co Yes 986 OBVIOUS TYPO

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