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Need advice.... Car stalled while idle

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

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YOUR RESEARCHNeed advice.... Car stalled while idle

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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Discussions that performed work without a confirmed outcome: 1

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Performed · outcome unconfirmed · Original poster
I assume it is the MAF code again (I had the MAF code come up before I cleaned it out-- and since then there has been no CEL), but I need to take her in anyways for a reading.
Original post Read captured discussion
Need advice.... Car stalled while idle

Frequently discussed work

Check into

No successful repair reported for this finding.

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Reported fixes: 0
Unsuccessful attempts: 1
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Discussions that contain suggestions: 1

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Suggestion · Original poster
My car is not covered under warranty from Porsche, but I do have a third-party warranty I will check into.
Original post Read captured discussion
Need advice.... Car stalled while idle

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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 'Check into' (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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Check into

Suggestion or failed attempt

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Unsuccessful attempts: 1
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Discussions that contain suggestions: 1

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Suggestion · Original poster
My car is not covered under warranty from Porsche, but I do have a third-party warranty I will check into.
Original post Read captured discussion
Need advice.... Car stalled while idle

Reset own cel

Suggestion or failed attempt

No successful repair reported for this finding.

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Reported fixes: 0
Unsuccessful attempts: 1
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Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

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Suggestion
You can reset your own CEL with an aftermarket diag tool.
Original post Read captured discussion
Need advice.... Car stalled while idle

Run excessively rich

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
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Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

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Suggestion · Original poster
It was running excessively rich...
Original post Read captured discussion
Need advice.... Car stalled while idle

Suggestion
My car seems to run excessively rich when it's slightly cold.
Original post Read captured discussion
Need advice.... Car stalled while idle

Run very rich

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
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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
They run very rich when cold.
Original post Read captured discussion
Need advice.... Car stalled while idle

Frequently discussed actions (5)

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

Check into

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 · Original poster
My car is not covered under warranty from Porsche, but I do have a third-party warranty I will check into.
Original post Read captured discussion
Need advice.... Car stalled while idle

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

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 assume it is the MAF code again (I had the MAF code come up before I cleaned it out-- and since then there has been no CEL), but I need to take her in anyways for a reading.
Original post Read captured discussion
Need advice.... Car stalled while idle

Reset own cel

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
You can reset your own CEL with an aftermarket diag tool.
Original post Read captured discussion
Need advice.... Car stalled while idle

Run excessively rich

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 · Original poster
It was running excessively rich...
Original post Read captured discussion
Need advice.... Car stalled while idle

Suggestion
My car seems to run excessively rich when it's slightly cold.
Original post Read captured discussion
Need advice.... Car stalled while idle

Run very rich

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
They run very rich when cold.
Original post Read captured discussion
Need advice.... Car stalled while idle

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.

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: 20261026T161109Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hey guys... Looking for some technical advice about what happened this morning. Last night, I parked my car on the street in 40-50 degree weather (she usually sleeps in a heated garage). I wake up this morning and start her up. I was late for a meeting, so I let her warm up for about 3-5 minutes and then drove off to work. The temp was at the far left of the 180. When I was stopped at a light, my rpms were fluctuating (the temp was still to the left of the 180 mark). It began to fluctuate so much that it made the car stall. I started her up again and as the engine warmed up (temp near 180), the rpm fluctuation was nearly gone (at very low levels). Now my question is, was it because I didn't let my engine warm up enough that it stalled? Or do I have a bigger issue I should investigate? I'm kind of worried... Btw, the CEL has been for the last couple of weeks.. I assume it is the MAF code again (I had the MAF code come up before I cleaned it out-- and since then there has been no CEL), but I need to take her in anyways for a reading. Thanks for anyone's help...

POST 2Original post

MAF, o2 sensor, when you get a CEL, the system goes into a limp mode. If you go to a dealer you may have a problem with the chip/airbox/headers etc, as far as warranty goes.

POST 3Original post

You can reset your own CEL with an aftermarket diag tool. $100-200.

POST 4Original post

You probably fouled the spark plugs. They run very rich when cold. I think letting the car sit and idle when first started increases the chance of fouling the plugs. My car seems to run excessively rich when it's slightly cold. The manual recommends driving off slowly after a short warm up, rather than sitting and idling.

POST 5 / ORIGINAL POSTEROriginal post

Chris: Thanks. My car is not covered under warranty from Porsche, but I do have a third-party warranty I will check into. I may make a run to RPM if I have the time this weekend. Vette: I really should pick up one... Any suggestions? ebaker: Thanks for the advice, I didn't know about that. It was running excessively rich...

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