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Porsche Club GB

Missfire problem 996 cabrio

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

Discussion summary

YOUR RESEARCHMissfire problem 996 cabrio

Leading reported evidence

Replace 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
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.

Performed · outcome unconfirmed · Original poster

the plugs were changed a few months ago, but stupidly didn't change the coil packs so assumed it was that, yes it was P0302.

Missfire problem 996 cabrio

Suggestion

Did you change the plugs?

Missfire problem 996 cabrio
Frequently discussed work

Check resin coating

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

If you can clean the end of the coil pack and check the resin coating for any cracks, it is likely they will need changing.

Missfire problem 996 cabrio
Read full discussion summary

Leading evidence: 'Replace plugs' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check resin coating' (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 · 5 captured posts examined · 0 partial discussions

Compare 4 other evidence results

Check resin coating

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

If you can clean the end of the coil pack and check the resin coating for any cracks, it is likely they will need changing.

Missfire problem 996 cabrio

Clean end of the coil pack

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

If you can clean the end of the coil pack and check the resin coating for any cracks, it is likely they will need changing.

Missfire problem 996 cabrio

Clean maf tomorrow

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

Not sure about any other codes but im going to clean the Maf tomorrow and run it so if its still an issue i will get the code again.

Missfire problem 996 cabrio

Clean mass air flow sensor

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

The other thing i am yet to try is to clean the MAF.

Missfire problem 996 cabrio
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 resin coating

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

If you can clean the end of the coil pack and check the resin coating for any cracks, it is likely they will need changing.

Missfire problem 996 cabrio

Clean end of the coil pack

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

If you can clean the end of the coil pack and check the resin coating for any cracks, it is likely they will need changing.

Missfire problem 996 cabrio

Clean maf tomorrow

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

Not sure about any other codes but im going to clean the Maf tomorrow and run it so if its still an issue i will get the code again.

Missfire problem 996 cabrio

Clean mass air flow sensor

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

The other thing i am yet to try is to clean the MAF.

Missfire problem 996 cabrio

Replace coils thinking it was

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’ve got a missfire on cylinder 2 according to my fault reader , I’ve change all the coils thinking it was that but it’s still sounding rough but only when it warms up, the engine light is flashing and exhaust had a split in which I used gun gum until I can afford a new one (sounds a bit blowing) so not sure if an exhaust issue.

Missfire problem 996 cabrio

Replace 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
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.

Performed · outcome unconfirmed · Original poster

the plugs were changed a few months ago, but stupidly didn't change the coil packs so assumed it was that, yes it was P0302.

Missfire problem 996 cabrio

Suggestion

Did you change the plugs?

Missfire problem 996 cabrio
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.

5 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

  • Porsche Club GB: 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: 20261026T130754Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hi all I’ve got a missfire on cylinder 2 according to my fault reader , I’ve change all the coils thinking it was that but it’s still sounding rough but only when it warms up, the engine light is flashing and exhaust had a split in which I used gun gum until I can afford a new one (sounds a bit blowing) so not sure if an exhaust issue. The other thing i am yet to try is to clean the MAF. Any ideas on what else it could be??? Thanks

POST 2Original post

I don't think the exhaust would throw up a misfire code - it would be an emissions-related code. Similarly for the MAF - it would be an emissions code, and not restricted to one cylinder. Was it P0302? Any other codes? Did you change the plugs? It could be an injector, but that is very, very rare, compared to coil packs.

POST 3 / ORIGINAL POSTEROriginal post

the plugs were changed a few months ago, but stupidly didn't change the coil packs so assumed it was that, yes it was P0302. Not sure about any other codes but im going to clean the Maf tomorrow and run it so if its still an issue i will get the code again.

POST 4 / ORIGINAL POSTEROriginal post

update... i've cleaned the Maf and put in some injector cleaner, i gave it a run out for about 30 mins and its seems to have sorted the missfire it drove like a dream, i hope this is now sorted but will see what happens over the next few weeks. Thanks for your help

POST 5Original post

If you can clean the end of the coil pack and check the resin coating for any cracks, it is likely they will need changing. Dodgy spark plug?

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