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High Revs on Cold Start

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

Discussion summary

YOUR RESEARCHHigh Revs on Cold Start

Leading reported evidence

Clean icv (this car is pre-electronic throttle) thoroughly

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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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 cleaned the ICV (this car is pre-electronic throttle) thoroughly but that didn't change anything.

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High Revs on Cold Start
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Leading evidence: 'Clean icv (this car is pre-electronic throttle) thoroughly' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Clean icv (this car is pre-electronic throttle) thoroughly' (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 · 9 captured posts examined · 0 partial discussions

Compare 1 other evidence results

Set hand throttle

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

That was the correct setting for the hand throttle.

Original post Read captured discussion
High Revs on Cold Start
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.

Clean icv (this car is pre-electronic throttle) thoroughly

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 cleaned the ICV (this car is pre-electronic throttle) thoroughly but that didn't change anything.

Original post Read captured discussion
High Revs on Cold Start

Set hand throttle

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

That was the correct setting for the hand throttle.

Original post Read captured discussion
High Revs on Cold Start
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.

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

  • Rennlist: 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: 20261026T142254Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

My '99 Carrera Cabriolet revs up to about 1800 RPMs and immediately drops down to a reasonable level (maybe 1100 RPM) before settling down to 800 RPM to idle. On warm starts I don't have the problem. I cleaned the ICV (this car is pre-electronic throttle) thoroughly but that didn't change anything. Other than the brief high rev, it idles fine. Any ideas?

POST 3Original post

I have a 1999 C2 Cab and mine does that as well. Nothing to sweat about.

POST 5Original post

My 1970 911S with mechanical injection revved to 2.5k then 4k at cold start. I used to cringe. That was the correct setting for the hand throttle. If you didn't do that you risked a fire in the top of the air box, where the cold start injectors shot raw fuel into the open throttle bodies.

POST 7Original post

Mine also does this and has since I bought the car 2 years ago.

POST 8Original post

Same here...but, do you guys let the car get to normal idle before leaving the garage? I always do.

POST 9 / ORIGINAL POSTEROriginal post

Yes, I get to normal idle fairly quickly.

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