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Porsche Club GB

Misfire on acceleration on low revs

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

Discussion summary

YOUR RESEARCHMisfire on acceleration on low revs

Reported or suspected cause

ignition coils

Suggestion or failed attempt

No successful repair reported for this finding.

0
Identified cause
1
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 suspect 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.

Suspected cause

I suspect that your problem is a coil pack, but you need to get a diagnostic check done with a Porsche tester to confirm.

Original post Read captured discussion
Misfire on acceleration on low revs

Outcome qualification: Negation, uncertainty or missing explicit repair resolution overrides the raw extraction signal.

Frequently discussed work

Check ) does flicker

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

Engine management light (Check) does flicker on when this happens sometimes (not all).

Original post Read captured discussion
Misfire on acceleration on low revs
Read full discussion summary

Leading evidence: 'ignition coils' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'ignition coils' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Check ) does flicker' (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 · 4 captured posts examined · 0 partial discussions

Compare 4 other evidence results

Check ) does flicker

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

Engine management light (Check) does flicker on when this happens sometimes (not all).

Original post Read captured discussion
Misfire on acceleration on low revs

Check done

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

I suspect that your problem is a coil pack, but you need to get a diagnostic check done with a Porsche tester to confirm.

Original post Read captured discussion
Misfire on acceleration on low revs

Disconnect battery

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

You would have to disconnect the battery to do it.

Original post Read captured discussion
Misfire on acceleration on low revs

Use bosch motronic version 5.2.2

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

Also, early UK 996s with mechanical throttle use Bosch Motronic version 5.2.2 which isn't truly OBD2 or EOBD compatible.

Original post Read captured discussion
Misfire on acceleration on low revs
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 ) does flicker

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

Engine management light (Check) does flicker on when this happens sometimes (not all).

Original post Read captured discussion
Misfire on acceleration on low revs

Check done

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

I suspect that your problem is a coil pack, but you need to get a diagnostic check done with a Porsche tester to confirm.

Original post Read captured discussion
Misfire on acceleration on low revs

Disconnect battery

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

You would have to disconnect the battery to do it.

Original post Read captured discussion
Misfire on acceleration on low revs

Use bosch motronic version 5.2.2

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

Also, early UK 996s with mechanical throttle use Bosch Motronic version 5.2.2 which isn't truly OBD2 or EOBD compatible.

Original post Read captured discussion
Misfire on acceleration on low revs
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.

ignition coils

No successful repair reported for this finding.

0
Identified cause
1
Suspected cause
0
Reported fixes
Read evidence and context
Discussions that suspect 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.

Suspected cause

I suspect that your problem is a coil pack, but you need to get a diagnostic check done with a Porsche tester to confirm.

Original post Read captured discussion
Misfire on acceleration on low revs

Outcome qualification: Negation, uncertainty or missing explicit repair resolution overrides the raw extraction signal.

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.

4 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 · 1 adjusted by outcome qualification.

0 acknowledgements have no verified action link; they do not establish a repair result.

Generation: 20261027T025149Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

My 2000 C2 Tip has developed a problem of misfiring under acceleration from low revs (under 2000 rpm). Seems worse when engine warm. Engine runs perfectly in higher revs. Tried Throttle body Adap. with no success (low outside temp could be affecting this) Has anyone had this problem before or does anyone know what it could be. Engine management light (Check) does flicker on when this happens sometimes (not all). No fault codes showed on Snap-on Diagnostic. Help needed please.[ ]

POST 2Original post

Mick! If your car is early 2000 then it might have mechanical throttle, and the system adaption routine won't work. You would have to disconnect the battery to do it. Also, early UK 996s with mechanical throttle use Bosch Motronic version 5.2.2 which isn't truly OBD2 or EOBD compatible. Therefore, the Snap-On tester might not read the Porsche fault codes. I had the same trouble with my 1998 C2. I suspect that your problem is a coil pack, but you need to get a diagnostic check done with a Porsche tester to confirm. If you are anywhere near me I'd be happy to do it for you. Edit: A touch of brain fade. MY2002 is electronic throttle, so scrub what I said about that. You may still have a fault code stored in the Pending Codes register which the Snap-On tool might not be able to read though.

POST 3Original post

Agree with Richard sounds like coilpack problems to me

POST 4 / ORIGINAL POSTEROriginal post

Thanks for your analysis guys. Just for your info. Car is a late 2000 so assume FBW throttle. Not convinced it is coils though. Would have thought you would notice this on higher revs/heavy load. Engine runs perfectly above 2000 rpm range. Have tried driving it on manual and seems to have no hesitancy due to revs being a lot higher on average. I think it is throttle body adaptor/sensor or something electrically led. Will have to book for Diagnosis at local Porsche specialist Richard as I live in East Northants. Will let you know outcome. Thanks for your thoughts/advice.

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