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Starts but won't run - Page 1 - 911/Carrera GT - PistonHeads UK

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Original source
6 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHStarts but won't run - Page 1 - 911/Carrera GT - PistonHeads UK

Reported or suspected cause

idle control valve - not an expensive job

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

It was the idle control valve - not an expensive job.

Original post Read captured discussion
Starts but won't run - Page 1 - 911/Carrera GT - PistonHeads UK
Frequently discussed work

Run bit longer

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

Does it die after a couple of seconds or does it keep running for a bit longer?

Original post Read captured discussion
Starts but won't run - Page 1 - 911/Carrera GT - PistonHeads UK
Read full discussion summary

Leading evidence: 'idle control valve - not an expensive job' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'idle control valve - not an expensive job' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Run bit longer' (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 · 6 captured posts examined · 1 partial discussions

Compare 3 other evidence results

Run bit longer

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

Does it die after a couple of seconds or does it keep running for a bit longer?

Original post Read captured discussion
Starts but won't run - Page 1 - 911/Carrera GT - PistonHeads UK

Run though

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

It would run though, but not tickover, so I had to use the accelerator to keep the revs up myself.

Original post Read captured discussion
Starts but won't run - Page 1 - 911/Carrera GT - PistonHeads UK

Use accelerator

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

It would run though, but not tickover, so I had to use the accelerator to keep the revs up myself.

Original post Read captured discussion
Starts but won't run - Page 1 - 911/Carrera GT - PistonHeads UK
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.

Run bit longer

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

Does it die after a couple of seconds or does it keep running for a bit longer?

Original post Read captured discussion
Starts but won't run - Page 1 - 911/Carrera GT - PistonHeads UK

Run though

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

It would run though, but not tickover, so I had to use the accelerator to keep the revs up myself.

Original post Read captured discussion
Starts but won't run - Page 1 - 911/Carrera GT - PistonHeads UK

Use accelerator

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

It would run though, but not tickover, so I had to use the accelerator to keep the revs up myself.

Original post Read captured discussion
Starts but won't run - Page 1 - 911/Carrera GT - PistonHeads UK
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.

idle control valve - not an expensive job

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

It was the idle control valve - not an expensive job.

Original post Read captured discussion
Starts but won't run - Page 1 - 911/Carrera GT - PistonHeads UK
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.

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

  • PistonHeads: 1 discussions

0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.

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

Outcome without a verified action link

I've tried again this evening and no change.

Original post Read captured discussion

No unique explicit quoted action; no causal link assigned

Generation: 20261027T075545Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hope someone has some idea of what might be happening. I got in to my 99 3.4 996 this morning after leaving her for about a week. Turned the key,she starts ok but won't run. I haven't had chance to try again yet, but in the meantime, any ideas? Sorry if this is a little vague

POST 2Original post

It sounds like a fuel pump or immobiliser issue. Does it die after a couple of seconds or does it keep running for a bit longer?

POST 3Original post

A similar thing happened to my early 3.4 after it had been left for a while. It would run though, but not tickover, so I had to use the accelerator to keep the revs up myself. It was the idle control valve - not an expensive job.

POST 4 / ORIGINAL POSTEROriginal post

thanks for the replies. I've tried again this evening and no change. Fires and stops. Am going to get the. Local dealer to take her away and have a look. Seems very sudden to me. She was running fine when she was put away last week. Not sure about the imobilizer theory though as she was not actually locked during this time. I'll report the results of the OPC findings in due course.

POST 5 / ORIGINAL POSTEROriginal post

thanks for the replies. I've tried again this evening and no change. Fires and stops. Am going to get the. Local dealer to take her away and have a look. Seems very sudden to me. She was running fine when she was put away last week. Not sure about the imobilizer theory though as she was not actually locked during this time. I'll report the results of the OPC findings in due course.

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