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Non confirmed missifire at idle - 986 Forum - The Community for Porsche Boxster & Cayman Owners

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8 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHNon confirmed missifire at idle - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Leading reported evidence

Replace recently

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

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

Air filter also replaced recently.

Original post Read captured discussion
Non confirmed missifire at idle - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Frequently discussed work

Clean maf sensor maybe it’s dirty or

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

One of the things I plan on looking at is cleaning the MAF sensor maybe it’s dirty or because of AOS it has oil or something on it

Original post Read captured discussion
Non confirmed missifire at idle - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Read full discussion summary

Leading evidence: 'Replace recently' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Clean maf sensor maybe it’s dirty or' (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 · 8 captured posts examined · 0 partial discussions

Compare 4 other evidence results

Use smoke machine, the rubber hose

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

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

Used the smoke machine, the rubber hose that’s on the bottom of the AOS had a massive hole in it.

Original post Read captured discussion
Non confirmed missifire at idle - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Clean maf sensor maybe it’s dirty or

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

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

One of the things I plan on looking at is cleaning the MAF sensor maybe it’s dirty or because of AOS it has oil or something on it

Original post Read captured discussion
Non confirmed missifire at idle - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Replace aos while i’m in there

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

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

My lift is occupied so I figured I’d use the next week to see what you guys think, will probably replace AOS while I’m in there because of the white smoke.

Original post Read captured discussion
Non confirmed missifire at idle - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Use 93 octane

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

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

Only use 93 octane

Original post Read captured discussion
Non confirmed missifire at idle - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Frequently discussed actions (7)

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

Clean maf sensor maybe it’s dirty or

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

One of the things I plan on looking at is cleaning the MAF sensor maybe it’s dirty or because of AOS it has oil or something on it

Original post Read captured discussion
Non confirmed missifire at idle - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Replace aos while i’m in there

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

My lift is occupied so I figured I’d use the next week to see what you guys think, will probably replace AOS while I’m in there because of the white smoke.

Original post Read captured discussion
Non confirmed missifire at idle - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Replace recently

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

Air filter also replaced recently.

Original post Read captured discussion
Non confirmed missifire at idle - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Use 93 octane

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

Only use 93 octane

Original post Read captured discussion
Non confirmed missifire at idle - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Use but can’t get

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 do have a smoke machine I can use but can’t get to the car till next week.

Original post Read captured discussion
Non confirmed missifire at idle - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Use next week

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

My lift is occupied so I figured I’d use the next week to see what you guys think, will probably replace AOS while I’m in there because of the white smoke.

Original post Read captured discussion
Non confirmed missifire at idle - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Use smoke machine, the rubber hose

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

Used the smoke machine, the rubber hose that’s on the bottom of the AOS had a massive hole in it.

Original post Read captured discussion
Non confirmed missifire at idle - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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.

8 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: 20261026T061123Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

2001 986 2.7 80k miles. Randomly starting this morning when I started the car I got a slight rough idle with no CEL. Car revs up and even drives and feels like it has most of it power but once you are at idle it sounds exactly like the car has an aggressive cam. I did replace the AOS 10-20k miles ago and only get white smoke maybe once every few weeks when the car sits for awhile. Is there any like big things that normally cause this I should check? I’m used to engine codes. I do have a smoke machine I can use but can’t get to the car till next week. My lift is occupied so I figured I’d use the next week to see what you guys think, will probably replace AOS while I’m in there because of the white smoke. New spark plugs and several coils in the past 10k miles. I’ve normally always had check engine lights to diagnose so this is a first for me with this car not getting one

POST 2 / ORIGINAL POSTEROriginal post

Air filter also replaced recently. Has secondary cat bypass pipes and from what I think it has original o2 sensors. Only use 93 octane

POST 3 / ORIGINAL POSTEROriginal post

One of the things I plan on looking at is cleaning the MAF sensor maybe it’s dirty or because of AOS it has oil or something on it

POST 6 / ORIGINAL POSTEROriginal post

Used the smoke machine, the rubber hose that’s on the bottom of the AOS had a massive hole in it. Replaced and ran fine

POST 7Original post

I'm dealing with a similar issue, may I ask where you injected the smoke? Thanks.

POST 8 / ORIGINAL POSTEROriginal post

Smaller hose that goes into intake tube. I’d know if I saw it

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