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Pelican Parts

996 Multiple Misfire Codes

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

Discussion summary

YOUR RESEARCH996 Multiple Misfire Codes

Leading reported evidence

Check other sensors maf, o2, etc

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

I checked all other sensors Maf, O2, etc.

Original post Read captured discussion
996 Multiple Misfire Codes
Read full discussion summary

Leading evidence: 'Check other sensors maf, o2, etc' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check other sensors maf, o2, etc' (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

Compare 4 other evidence results

Replace two packs and plugs

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

I Ordered and replaced the two packs and plugs.

Original post Read captured discussion
996 Multiple Misfire Codes

Test resistance both packs

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

I then removed Coil packs from cylinders #3 and #6 tested for resistance both packs checked out.

Original post Read captured discussion
996 Multiple Misfire Codes

Test several hours (fun) and still no codes

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

Road tested for several hours (Fun) and still no codes.

Original post Read captured discussion
996 Multiple Misfire Codes

Use live data function and selected misfire counts

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 Live Data function and selected Misfire counts to all cylinders.

Original post Read captured discussion
996 Multiple Misfire Codes
Frequently discussed actions (6)

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

Check other sensors maf, o2, etc

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

I checked all other sensors Maf, O2, etc.

Original post Read captured discussion
996 Multiple Misfire Codes

Replace two packs and plugs

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

I Ordered and replaced the two packs and plugs.

Original post Read captured discussion
996 Multiple Misfire Codes

Test exactly as

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

Restarted the test exactly as before.

Original post Read captured discussion
996 Multiple Misfire Codes

Test resistance both packs

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

I then removed Coil packs from cylinders #3 and #6 tested for resistance both packs checked out.

Original post Read captured discussion
996 Multiple Misfire Codes

Test several hours (fun) and still no codes

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

Road tested for several hours (Fun) and still no codes.

Original post Read captured discussion
996 Multiple Misfire Codes

Use live data function and selected misfire counts

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 Live Data function and selected Misfire counts to all cylinders.

Original post Read captured discussion
996 Multiple Misfire Codes
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.

  • Pelican Parts: 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

Problem Solved.

Original post Read captured discussion

No unique explicit quoted action; no causal link assigned

Generation: 20261027T011819Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I have a 2003 Porsche Carrera 4 cab with a 996 engine. I am getting multiple misfire codes p0300, for p0303, p0306 #3 and #6 cylinders when engine is warmed up. No codes before then. What could cause this. Thank You in advance.

POST 2 / ORIGINAL POSTEROriginal post

If anyone is interested. This may be helpful. Engine ran fine until it reached maximum temperature then codes and misfires occurred. I decided to invest in a Durametric Enthusiast cable unit. Started car and idled to max temperature. When Durametric plugged in unit showed misfire codes on cylinder #3 and #6. Used Live Data function and selected Misfire counts to all cylinders. Found #3 to be misfiring 8 times per second. Found #6 to be misfiring fro 60 to 80 times per second. All other cylinders showed 0 counts. I checked all other sensors Maf, O2, etc. all within manual tolerance. I then removed Coil packs from cylinders #3 and #6 tested for resistance both packs checked out. I then found visual signs of a crack on top of each coil pack. I Ordered and replaced the two packs and plugs. Restarted the test exactly as before. No Misfires on any cylinders. Road tested for several hours (Fun) and still no codes. Yay! Problem Solved. Determination: Coil packs showed good with resistance check. Packs show cracks with visual inspection. Packs failed when heated due to expansion of visual crack maybe allowing spark to go to ground or pack failure. Invest in Durametric! It already paid for itself!!

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