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OBD II Codes (Check Engine Light) - 986 Forum - The Community for Porsche Boxster & Cayman Owners

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

Discussion summary

YOUR RESEARCHOBD II Codes (Check Engine Light) - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Reported or suspected cause

thin rubber band

Reported cause

No successful repair reported for this finding.

1
Identified cause
0
Suspected cause
0
Reported fixes
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 report identifying a cause
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.

Reported cause

I spent a whole weekend trying to tackle a similar problem,rechecking connections,swapping parts out.....it was due to a thin rubber band that is used between the connection of the plenum and throttle body that I forgot to take of the old plenum when I replaced it.

Original post Read captured discussion
OBD II Codes (Check Engine Light) - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Frequently discussed work

Clean today

No successful repair reported for this finding.

0
Reported fixes
1
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that report an unsuccessful attempt
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.

Unsuccessful attempt · Original poster

I am thinking possible MAF (cleaned today, but no change), O2 sensor or Vacuum leak some where.

Original post Read captured discussion
OBD II Codes (Check Engine Light) - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Read full discussion summary

Leading evidence: 'thin rubber band' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'thin rubber band' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Clean today' (1 discussions). For that action, 0 discussions report a resolution and 1 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 · 2 captured posts examined · 0 partial discussions

Compare 3 other evidence results

Use between the connection of the plenum and throttle body

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

I spent a whole weekend trying to tackle a similar problem,rechecking connections,swapping parts out.....it was due to a thin rubber band that is used between the connection of the plenum and throttle body that I forgot to take of the old plenum when I replaced it.

Original post Read captured discussion
OBD II Codes (Check Engine Light) - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Replace ), o2 sensor or vacuum leak some where

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

I am thinking possible MAF (cleaned today, but no change), O2 sensor or Vacuum leak some where.

Original post Read captured discussion
OBD II Codes (Check Engine Light) - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Clean today

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes
1
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 report an unsuccessful attempt
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.

Unsuccessful attempt · Original poster

I am thinking possible MAF (cleaned today, but no change), O2 sensor or Vacuum leak some where.

Original post Read captured discussion
OBD II Codes (Check Engine Light) - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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.

Clean today

No successful repair reported for this finding.

0
Reported fixes
1
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that report an unsuccessful attempt
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.

Unsuccessful attempt · Original poster

I am thinking possible MAF (cleaned today, but no change), O2 sensor or Vacuum leak some where.

Original post Read captured discussion
OBD II Codes (Check Engine Light) - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Replace ), o2 sensor or vacuum leak some where

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 am thinking possible MAF (cleaned today, but no change), O2 sensor or Vacuum leak some where.

Original post Read captured discussion
OBD II Codes (Check Engine Light) - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Use between the connection of the plenum and throttle body

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

I spent a whole weekend trying to tackle a similar problem,rechecking connections,swapping parts out.....it was due to a thin rubber band that is used between the connection of the plenum and throttle body that I forgot to take of the old plenum when I replaced it.

Original post Read captured discussion
OBD II Codes (Check Engine Light) - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Reported and suspected causes (1)

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

thin rubber band

No successful repair reported for this finding.

1
Identified cause
0
Suspected cause
0
Reported fixes
Read evidence and context
Discussions that report identifying a cause
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.

Reported cause

I spent a whole weekend trying to tackle a similar problem,rechecking connections,swapping parts out.....it was due to a thin rubber band that is used between the connection of the plenum and throttle body that I forgot to take of the old plenum when I replaced it.

Original post Read captured discussion
OBD II Codes (Check Engine Light) - 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.

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: 20261026T220748Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I own a 2001 2.7L Boxster, but recently have been getting a check engine light (P1126 and P1133 and P0300). I am thinking possible MAF (cleaned today, but no change), O2 sensor or Vacuum leak some where. There is no rotten egg smell, so I would assume it is running lean. There is also no smoke coming from the tail pipe. I do all maintenance and repairs myself, but I like to figure out the source of the problem first. Condition: Cold start....Misfire (solid check engine light) with engine bogging down with slight tip-in of gas pedal. When warm: Misfire is gone (solid check engine light), but engine is sluggish. Has anyone experience this condition before? Thanks, Dennis

POST 2Original post

Just take it to a shop. Pay them a hours labor to find out the problem. If it's simple,D.I.Y.,if not let the pros tackle it. I spent a whole weekend trying to tackle a similar problem,rechecking connections,swapping parts out.....it was due to a thin rubber band that is used between the connection of the plenum and throttle body that I forgot to take of the old plenum when I replaced it. I spent probably 12 hours that weekend trying to find the problem,shop found it in 15 minutes.

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