2 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCH996 starting problem
Reported or suspected cause
similar
Reported cause
No successful repair reported for this finding.
1
Identified cause
0
Suspected cause
0
Reported fixes
Read evidence and context
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Discussions that report identifying a cause
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Reported cause · Original poster
Basically problem is similar to the one found in this thread,
Leading evidence: 'similar' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'similar' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Run once at operating temperature' (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.
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 suspect a cause
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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 contain suggestions
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Suggestion · Original poster
This is about a newish-to-me 2003 Carrera (40k miles, manual) that has become intermittently difficult to get running once at operating temperature.
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.
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Suggestion
A mechanically stuck open valve will not always set a fault.
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
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Suggestion · Original poster
Research on the forum seems to indicate this could be a EVAP emissions problem but I can't find suggestions on how to test the charcoal canister or related valves that are part of the system.
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
Research on the forum seems to indicate this could be a EVAP emissions problem but I can't find suggestions on how to test the charcoal canister or related valves that are part of the system.
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: 20261026T135432Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Hello all, first post here, and I'm hopeful for some advice. This is about a newish-to-me 2003 Carrera (40k miles, manual) that has become intermittently difficult to get running once at operating temperature. The starter engages with no hesitation or sluggishness and the fuel pump primes as normal but the engine will not start.
On the first attempt the engine will almost immediately catch (as normal) before sputtering for a moment and dying out; on subsequent attempts the engine spins but with no hint of catching. The only way I've gotten it to run is to depress the gas pedal when the starter is engaged. Once started it runs and idles normally. First start of the day is also normal.
Research on the forum seems to indicate this could be a EVAP emissions problem but I can't find suggestions on how to test the charcoal canister or related valves that are part of the system. The Bentley book is also of little help.
Two other anomalies point towards the EVAP system: once while fueling a resonance began from under the car in the region of the fuel filler tube. Its tone and vibration was such that I honestly thought 996s must have circulation fan near the tank to move vapor through the chassis. Second, and most recently, upon removing the fuel cap a steady stream of warm air wafted from the filler tube. Ambient temp was about 80deg and the vapor was warm enough to cause condensation on the opposite side of the filler door.
Basically problem is similar to the one found in this thread,
http://forums.pelicanparts.com/boxster-cayman-forum/669017-hot-start-problem-code-p0446.html
. There's some helpful information posted but unfortunately no testing tips and no resolution of the culprit. I also don't have a check engine light.
Thanks in advance for any suggestions.
Likely a stuck open tank vent valve. Easiest way to test it is to disconnect it and blow through it. I stick a hose on it and blow through with my mouth. A mechanically stuck open valve will not always set a fault. Also, it may have a fault stored with no light on. Let me know what you find
This is a source reference. Confirm exact model applicability in the original material.
