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2002 Boxster misfiring and running rough - 986 Forum - The Community for Porsche Boxster & Cayman Owners

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

Discussion summary

YOUR RESEARCH2002 Boxster misfiring and running rough - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Leading reported evidence

Run same, rough

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

So, I immediately double checked the number online, removed them and put in the Beru 7129 and it ran the same, rough...

Original post Read captured discussion
2002 Boxster misfiring and running rough - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Frequently discussed work

Check next

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

Any thoughts what to check next.

Original post Read captured discussion
2002 Boxster misfiring and running rough - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Read full discussion summary

Leading evidence: 'Run same, rough' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check next' (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 · 1 captured posts examined · 0 partial discussions

Compare 3 other evidence results

Check next

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

Any thoughts what to check next.

Original post Read captured discussion
2002 Boxster misfiring and running rough - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Clean off the side of the engine somewhat

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 remembered that I did clean off the side of the engine somewhat with degreaser and rinsed off with parts cleaner so thought maybe the coils were damaged when I handled them, or the moisture caused an issue.

Original post Read captured discussion
2002 Boxster misfiring and running rough - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Replace spark plugs

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

Long story short, I was updating my suspension (Arms, bushing, shocks, etc..) and while the car was up on stands, I decided to replace the spark plugs.

Original post Read captured discussion
2002 Boxster misfiring and running rough - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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.

Check next

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

Any thoughts what to check next.

Original post Read captured discussion
2002 Boxster misfiring and running rough - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Clean off the side of the engine somewhat

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 remembered that I did clean off the side of the engine somewhat with degreaser and rinsed off with parts cleaner so thought maybe the coils were damaged when I handled them, or the moisture caused an issue.

Original post Read captured discussion
2002 Boxster misfiring and running rough - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Replace spark plugs

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

Long story short, I was updating my suspension (Arms, bushing, shocks, etc..) and while the car was up on stands, I decided to replace the spark plugs.

Original post Read captured discussion
2002 Boxster misfiring and running rough - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Run same, rough

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

So, I immediately double checked the number online, removed them and put in the Beru 7129 and it ran the same, rough...

Original post Read captured discussion
2002 Boxster misfiring and running rough - 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.

1 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: 20261026T161109Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I could use some help here as I am out of ideas what is causing this issue. Long story short, I was updating my suspension (Arms, bushing, shocks, etc..) and while the car was up on stands, I decided to replace the spark plugs. Picked up the wrong plugs at my local store, (NGK BKR6EK (2288)) which are for the 2.8. After starting the car ran rough, missing and backfiring. So, I immediately double checked the number online, removed them and put in the Beru 7129 and it ran the same, rough... I remembered that I did clean off the side of the engine somewhat with degreaser and rinsed off with parts cleaner so thought maybe the coils were damaged when I handled them, or the moisture caused an issue. I ordered new coils and after installing them today the car runs the same. Any thoughts what to check next. I recorded a video of the car behavior. https://photos.app.goo.gl/AjVJCEuQaFr4MNbc6

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