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Low idle at startup

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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 RESEARCHLow idle at startup

Leading reported evidence

Check hoses

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

- visually check all hoses that you can see

Low idle at startup
Read full discussion summary

Leading evidence: 'Check hoses' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check hoses' (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 2 other evidence results

Check pending codes

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

Even if the CEL never came on or is off you can check for pending codes.

Low idle at startup

Clean throttle body and idle valve (looks like a mki?)

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

- Clean your throttle body and idle valve (looks like a MkI?)

Low idle at startup
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.

Check hoses

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

- visually check all hoses that you can see

Low idle at startup

Check pending codes

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

Even if the CEL never came on or is off you can check for pending codes.

Low idle at startup

Clean throttle body and idle valve (looks like a mki?)

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

- Clean your throttle body and idle valve (looks like a MkI?)

Low idle at startup
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.

  • 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: 20261027T031046Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

2 days ago started car in the am and tachometer registered barely 200 rpms, engine felt as if wanted to turn off. I kept steady pressure on gas pedal and drove it around block and the rpm's raised to 800 or so. Drove car for 50 miles with no issues that day and another 80 miles the next with no problems. Quirk? SAI? Vacuum leak? Too little info? I do not have OBD11 reader and wanted to gather some possibilities. Thanks for any input.

POST 2Original post

You may want to try the following - Clean your throttle body and idle valve (looks like a MkI?) - Get a scanner to scan for error codes - visually check all hoses that you can see

POST 3Original post

Model year, miles, and some more details about the car would be nice. If the CEL came on or is on read the codes. Even if the CEL never came on or is off you can check for pending codes. If the car is pre e-Gas you should consider the ICV. It could be dirty or possibly failing. If the car is either pre or post e-Gas you should consider the fuel filter or the fuel pump. While it doesn't read like an AOS there's always the AOS to consider. Also, while it doesn't read like a bad MAF or a wrong reading coolant temperature sensor you need to keep these in the back of your mind as possible explanations. I'd not replace anything just yet unless the fuel filter is due based on miles.

POST 4 / ORIGINAL POSTEROriginal post

Quotes source post: 11472692

99 c2 pre e-gas with 68,000 miles, no CEL appeared, driven daily since this occurred with no startup issues but idling at 800 rpms max.... 4,000 miles since last oil change

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