Rennlist

Rough idle, what to check?

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

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

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YOUR RESEARCHRough idle, what to check?

Leading reported evidence

Clean mass air flow sensor

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
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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
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
Clean the MAF?
Original post Read captured discussion
Rough idle, what to check?

Performed · outcome unconfirmed
I had an annoying rough idle and CEL a couple of times until I cleaned my MAF...
Original post Read captured discussion
Rough idle, what to check?

Read full discussion summary

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

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1 matching discussions · 5 captured posts examined · 0 partial discussions

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Replace idle controll sensor and throtal controll switch purchased

Performed · outcome unconfirmed

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
Replaced the Idle Controll Sensor and Throtal Controll Switch purchased from Pelecan Parts on Line site.
Original post Read captured discussion
Rough idle, what to check?

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 mass air flow sensor

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
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
Clean the MAF?
Original post Read captured discussion
Rough idle, what to check?

Performed · outcome unconfirmed
I had an annoying rough idle and CEL a couple of times until I cleaned my MAF...
Original post Read captured discussion
Rough idle, what to check?

Replace idle controll sensor and throtal controll switch purchased

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
Replaced the Idle Controll Sensor and Throtal Controll Switch purchased from Pelecan Parts on Line site.
Original post Read captured discussion
Rough idle, what to check?

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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.

5 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

I imagine my idle is a bit rough. What should I check? Clean the MAF?

POST 2Original post

I had the same problem bouncing from 200-1000 rpm. Replaced the Idle Controll Sensor and Throtal Controll Switch purchased from Pelecan Parts on Line site. Runs perfectly 1999 C2 996 56K miles for the past year no Idle bouncing.

POST 3Original post

so you have a check engine light? any access to a piwis or a duramteric software?

POST 4Original post

I think the easiest thing that you can do yourself is to clean your mass air flow (MAF) sensor and also your throttle body. You can buy some electronic cleaner for the MAF at any radio shack or auto parts store, and of course throttle body cleaner can be purchased just about anywhere these days. Give them both a thorough cleaning and see if that resolves your issue first. If not, photo25's recommendation seems pretty reasonable to undertake next.

POST 5Original post

I second this I had an annoying rough idle and CEL a couple of times until I cleaned my MAF...

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