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My 1998 996 C2 sounds less

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

Discussion summary

YOUR RESEARCHMy 1998 996 C2 sounds less

Reported or suspected cause

good idea

Suggestion or failed attempt

No successful repair reported for this finding.

0
Identified cause
1
Suspected cause
0
Reported fixes
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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 suspect a cause
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.

Suspected cause

Its probably a good idea to swap both precats next time its in for service

My 1998 996 C2 sounds less
Frequently discussed work

Test so never

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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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 · Original poster

I took the car to a Porsche Specialist to have it fixed (cause the main dealer is bloody expensive) how ever he didn�t find anything wrong and also did the test so never changed.

My 1998 996 C2 sounds less
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Leading evidence: 'good idea' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'good idea' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Test so never' (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.

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1 matching discussions · 4 captured posts examined · 0 partial discussions

Compare 2 other evidence results

Test so never

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

I took the car to a Porsche Specialist to have it fixed (cause the main dealer is bloody expensive) how ever he didn�t find anything wrong and also did the test so never changed.

My 1998 996 C2 sounds less

Tighten clamp and sealed a leak

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

Maybe the dealer tightened a clamp and sealed a leak?.

My 1998 996 C2 sounds less
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.

Test so never

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

I took the car to a Porsche Specialist to have it fixed (cause the main dealer is bloody expensive) how ever he didn�t find anything wrong and also did the test so never changed.

My 1998 996 C2 sounds less

Tighten clamp and sealed a leak

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

Maybe the dealer tightened a clamp and sealed a leak?.

My 1998 996 C2 sounds less
Reported and suspected causes (1)

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

good idea

No successful repair reported for this finding.

0
Identified cause
1
Suspected cause
0
Reported fixes
Read evidence and context
Discussions that suspect a cause
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.

Suspected cause

Its probably a good idea to swap both precats next time its in for service

My 1998 996 C2 sounds less
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.

4 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.

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

Outcome without a verified action link

I took the car to a Porsche Specialist to have it fixed (cause the main dealer is bloody expensive) how ever he didn�t find anything wrong and also did the test so never changed.

No unique explicit quoted action; no causal link assigned

Generation: 20261027T035758Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

So I�ve had this problem which I don�t think I�m just imagining. But the last few months I feel like there�s less of that hollow growl coming. Like before when a cold start and driving down my street with the windows down in first gear. And it just sounds so good, especially as it�s bouncing off the buildings (also got sport exhaust). But I don�t have a lot of that anymore. I definitely feel like it�s less than it used to be. When the engine is running warm I don�t really hear anything in first gear and maybe start to hear something in 2nd gear at 5-6k RPM last week I had the car in for a major service at a Porsche main dealer. they did find this: Exhaust: Active fault code:18 - O2 sensor ahead of cat. conv. Cylinder (4-6)(no signal). Req further investigation so they did the further investigation and found this: �The technician has carried out checks and found the O2 sensor ahead of catalytic converter (bank 2) intermittently inoperative. He has then carried out wiring checks but the wiring seems to be ok. We can confirm it is the sensor itself that is faulty so does need to be replaced to rectify.� I have no idea what the O2 sensor does. But anyway. I took the car to a Porsche Specialist to have it fixed (cause the main dealer is bloody expensive) how ever he didn�t find anything wrong and also did the test so never changed. but could that have anything at all to do with the fact that the car doesn�t sound as much? anybody else experienced something similar or am I just imagining things?

POST 2Original post

You're imagining things, or maybe that weed is too good, no?

POST 3 / ORIGINAL POSTEROriginal post

Quotes source post: 17981453

Hehe. I really hope I'm imagining things But if there was an actual fault. A major service at Porsche Main dealer should pick it up no?

POST 4Original post

O2 sensors tell the dme (engine computer) how well its burning the fuel. The precat units r very important. The postcat units just tell the computer that the cats r working. They have nothing to do with sound. Maybe the dealer tightened a clamp and sealed a leak?. It is common for a 20 yr/old o2 sensor to get "lazy" . Its probably a good idea to swap both precats next time its in for service

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