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996.2 EVAP Help Needed!

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5 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCH996.2 EVAP Help Needed!

Leading reported evidence

Fill gas tank.(took the gas cap off

Performed · outcome unconfirmed

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 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

When I smoke tested i noticed smoke coming from the vent on the right of the gas cap and it filled the gas tank.(took the gas cap off when done)

996.2 EVAP Help Needed!
Read full discussion summary

Leading evidence: 'Fill gas tank.(took the gas cap off' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Fill gas tank.(took the gas cap off' (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 · 5 captured posts examined · 0 partial discussions

Compare 4 other evidence results

Inspect lol

Performed · outcome unconfirmed

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 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 am trying to sort this so i can finally get the car inspected lol.

996.2 EVAP Help Needed!

Replace gas cap, fuel tank breather valve, tried

Performed · outcome unconfirmed

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 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

So far I have replaced the gas cap, fuel tank breather valve, tried smoke testing it and so far unsucessful.

996.2 EVAP Help Needed!

Smoke-test i noticed smoke coming

Performed · outcome unconfirmed

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 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

When I smoke tested i noticed smoke coming from the vent on the right of the gas cap and it filled the gas tank.(took the gas cap off when done)

996.2 EVAP Help Needed!

Replace regeneration valve, fuel tank vent valve

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes
1
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 report an unsuccessful attempt
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.

Unsuccessful attempt · Original poster

I have replaced the Regeneration Valve, Fuel Tank Vent Valve under the filler neck, and the fuel tank pressure sensor, with no luck

996.2 EVAP Help Needed!

Outcome qualification: Negation, uncertainty or missing explicit repair resolution overrides the raw extraction signal.

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.

Fill gas tank.(took the gas cap off

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

When I smoke tested i noticed smoke coming from the vent on the right of the gas cap and it filled the gas tank.(took the gas cap off when done)

996.2 EVAP Help Needed!

Inspect lol

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 am trying to sort this so i can finally get the car inspected lol.

996.2 EVAP Help Needed!

Replace gas cap, fuel tank breather valve, tried

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

So far I have replaced the gas cap, fuel tank breather valve, tried smoke testing it and so far unsucessful.

996.2 EVAP Help Needed!

Replace regeneration valve, fuel tank vent valve

No successful repair reported for this finding.

0
Reported fixes
1
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that report an unsuccessful attempt
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.

Unsuccessful attempt · Original poster

I have replaced the Regeneration Valve, Fuel Tank Vent Valve under the filler neck, and the fuel tank pressure sensor, with no luck

996.2 EVAP Help Needed!

Outcome qualification: Negation, uncertainty or missing explicit repair resolution overrides the raw extraction signal.

Smoke-test i noticed smoke coming

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

When I smoke tested i noticed smoke coming from the vent on the right of the gas cap and it filled the gas tank.(took the gas cap off when done)

996.2 EVAP Help Needed!
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 · 1 adjusted by outcome qualification.

0 acknowledgements have no verified action link; they do not establish a repair result.

Generation: 20261027T000231Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hello! I have a porsche 2003 996 C2 that I purchased back in May that came with an EVAP leak code P0455 that keeps coming back So far I have replaced the gas cap, fuel tank breather valve, tried smoke testing it and so far unsucessful. I have a charcol box ready to go in, but when I smoke tested it I saw no smoke coming from the canister/vent lines under the passenger front wheel well. When I smoke tested i noticed smoke coming from the vent on the right of the gas cap and it filled the gas tank.(took the gas cap off when done) Today I dissconnected the purge valve line above the alternator that goes to the canister and hooked up a vacum pump to it, heard someting sucking air near the driver side rear wheel well? could this be my problem? I do not have imediate access to jack my car up because I have a stone drive way. Is there any diagrams? I am aware that the EVAP systems are slightly different .1 vs .2. I am trying to sort this so i can finally get the car inspected lol.

POST 2 / ORIGINAL POSTEROriginal post

I have replaced the Regeneration Valve, Fuel Tank Vent Valve under the filler neck, and the fuel tank pressure sensor, with no luck Smoking testing, with the battery in the car I have smoke coming out of the vent next to the gas cap. (Is this normal???) I also noticed smoke coming out of the engine bay and traced it down to the vent line that dumps by the transmission. Any help is much appreciated. I bought this car back in April and I'm trying to get it inspected.

POST 3Original post

The fuel system should be sealed so the smoke leaks r not normal. Pull the finder liner and investigate.

POST 4 / ORIGINAL POSTEROriginal post

Update! With the car off(key off), I have 12V at the 996.605.213.01 Fuel Tank Vapor Control Valve (11 on the char below). I also pushed the switch next to the filler neck on the Fuel tank bleeder valve, and it did not change the output on the Fuel Tank Vapor Control Valve I assume this is not right. Does this mean I have a short at the reed valve, or is it installed improperly?

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