2 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHFuel tank vent issue on 997.2
Leading reported evidence
Fill with fuel, and hard start
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 · Original poster
Error code 0441, hard to fill with fuel, and hard start after fill up.
Leading evidence: 'Fill with fuel, and hard start' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Fill with fuel, and hard start' (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 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
These work as I can check them using the durametric tool.
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: 20261026T225432Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
I have all the symptoms of a non working vent valve. Error code 0441, hard to fill with fuel, and hard start after fill up.
I have seen all the info on the 996 with the valve mounted on the filler neck.
However my 997.2 is not like this. Using duro pro I can activate the diagnosis valve and pump in the canister, but nothing happens when activating the evaporative valve.
My question is where is this valve? It is not in the evap canister, I opened it and there are only the two electrical components listed above in there. These work as I can check them using the durametric tool.
So far I can not find anything on the 997.2 models regarding this valve.
In DME module, activations, I can start the evap valve option but I hear nothing.
If anyone can tell me how the evap system works in the 997.2 I would appreciate it.
What is odd is my old canister was damaged, cracked, no errors or issues at all. I replaced it and now this. Willing to replace again but it seems to be in working order.
Just in case anyone has this issue also, It is fixed.
The fuel tank vent valve is in fact in the engine bay. Mounted just behind the alternator with the small black lines going into it, one electrical connector. One line goes to the intake boot, the other comes from the Evap canister from the front compartment. Inside the evap is the charcoal filter, a valve and a small pump. The charcoal filter has two lines going into it from the bottom, one directly into the top of the gas tank, the other leads down and back to the vent valve in the engine bay.
My vent valve was stuck open causing the "leak" in the system. I removed it and could blow through. I dismantled it and found some debris in the valve assembly, cleaned it and reassembled. Now it is normally closed and opens when 12 volts is applied.
All errors are gone and system works fine.
This is a source reference. Confirm exact model applicability in the original material.
