Pelican Parts

2005 997 S Hesitation acceleration flat spot

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2 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCH2005 997 S Hesitation acceleration flat spot

Leading reported evidence

Check faults

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 would check faults, and check fuel trim values to see if the car is running rich or lean.
Original post Read captured discussion
2005 997 S Hesitation acceleration flat spot

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

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1 matching discussions · 2 captured posts examined · 0 partial discussions

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Check fuel trim values

Suggestion or failed attempt

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 would check faults, and check fuel trim values to see if the car is running rich or lean.
Original post Read captured discussion
2005 997 S Hesitation acceleration flat spot

Frequently discussed actions (2)

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

Check faults

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 would check faults, and check fuel trim values to see if the car is running rich or lean.
Original post Read captured discussion
2005 997 S Hesitation acceleration flat spot

Check fuel trim values

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 would check faults, and check fuel trim values to see if the car is running rich or lean.
Original post Read captured discussion
2005 997 S Hesitation acceleration flat spot

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.

2 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.

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

Generation: 20261026T113718Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1Original post

I just bought a 2005 997.1 S. The mileage is high but the car has full dealer service records and the engine has no abnormal noises but when driving off immediately after cold start under light acceleration there is a bad hesitation / flat spot. This only lasts during initial warm up between approx. 1800 - 2500 rpm. shortly after warm up all is well and no issues.No lumpy idle or misfiring and no CEL illuminated at any time and engine starts no problem. The issue will not occur again till another cold start. I.e. overnight parking. If I let the engine warm up for 10 minutes before driving I don't experience the problem. __________________ This post was auto-generated based upon a question asked on our tech article page here:

POST 2Original post

Sounds like a fuel pressure problem that is being compensated by the DME when warmed up. I would check faults, and check fuel trim values to see if the car is running rich or lean. - Casey

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