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Which Catalytic Converter - 986 Forum - The Community for Porsche Boxster & Cayman Owners

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

Discussion summary

YOUR RESEARCHWhich Catalytic Converter - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Reported or suspected cause

actually a convertor as of yet

Reported cause

No successful repair reported for this finding.

1
Identified cause
0
Suspected cause
0
Reported fixes
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 identifying 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.

Reported cause

Lets not assume the issue is actually a convertor as of yet.

Which Catalytic Converter - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Frequently discussed work

Check intake tubes

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

Unfortunately I am not familiar with the term AOS and don't know how to check the intake tubes...

Which Catalytic Converter - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Suggestion

Checked the intake tubes for oil?

Which Catalytic Converter - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Read full discussion summary

Leading evidence: 'actually a convertor as of yet' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'actually a convertor as of yet' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Check intake tubes' (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

Replace maf sensor last week

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 also changed the MAF sensor last week and reset the codes and so far no CEL.

Which Catalytic Converter - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Check intake tubes

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

Unfortunately I am not familiar with the term AOS and don't know how to check the intake tubes...

Which Catalytic Converter - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Suggestion

Checked the intake tubes for oil?

Which Catalytic Converter - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Recommend i do

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

So what would you recommend I do?

Which Catalytic Converter - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Replace brake pads, etc

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 enjoy doing small DIY projects though: oil change, brake pads, etc.

Which Catalytic Converter - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Frequently discussed actions (6)

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

Check intake tubes

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

Unfortunately I am not familiar with the term AOS and don't know how to check the intake tubes...

Which Catalytic Converter - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Suggestion

Checked the intake tubes for oil?

Which Catalytic Converter - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Recommend i do

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

So what would you recommend I do?

Which Catalytic Converter - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Replace brake pads, etc

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 enjoy doing small DIY projects though: oil change, brake pads, etc.

Which Catalytic Converter - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Replace maf sensor last week

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 also changed the MAF sensor last week and reset the codes and so far no CEL.

Which Catalytic Converter - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Replace oxygen sensors

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

The diagnostic to determine if it is really a cat is to replace the O2 sensor and then see if the problem goes away.

Which Catalytic Converter - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Reset codes and so far no 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 · Original poster

I also changed the MAF sensor last week and reset the codes and so far no CEL.

Which Catalytic Converter - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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.

actually a convertor as of yet

No successful repair reported for this finding.

1
Identified cause
0
Suspected cause
0
Reported fixes
Read evidence and context
Discussions that report identifying 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.

Reported cause

Lets not assume the issue is actually a convertor as of yet.

Which Catalytic Converter - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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.

  • 986Forum: 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: 20261027T000231Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hi there, I have a 2001 Boxster w/ 81,000 miles. I recently had a p0430 code. Ouch:-((( I am out of warranty. I also changed the MAF sensor last week and reset the codes and so far no CEL. But, I know that the code might come back and I may need to get a new catalytic converter. I don't know anything about cats. So what would you recommend I do? When I looked for a new one online, I get huge variances in price (for direct fit - don't even know what that means to Fabspeed $$$$$). My birthday is coming up in 2 months and if that's the cats, I have to fix it, I am SOL! Thanks Bob

POST 2Original post

more often a sensor or wiring. The diagnostic to determine if it is really a cat is to replace the O2 sensor and then see if the problem goes away. See if you can swap O2 sensors and does the problem follow the sensor or remain where the questionable sensor was? Swap pre-cat sensors first. Any history of AOS problems? Checked the intake tubes for oil?

POST 3 / ORIGINAL POSTEROriginal post

Hey Mike Thanks for the response. Unfortunately I am not familiar with the term AOS and don't know how to check the intake tubes... I enjoy doing small DIY projects though: oil change, brake pads, etc. No other known issues though with the car. My question is if it's indeed a cat converter issue, what should I be looking at, which brands, how much (I know it's $$$$$). Thanks Bob

POST 4Original post

The first thing you should do is to relax, and not worry so much just yet. Lets not assume the issue is actually a convertor as of yet. Just because the car through a code, doesn't mean for 100% certainty that the convertor is the cause. If it was my car, I would first start by switching the O2 sensors from the right side, to the left side, and the ones in the left side then go over to the right side. After the O2 sensors have switched sides, I would then drive the car normally for a while to see if the CEL comes back on. If the light doesn't come back on, then everything is great. If the light does come back on, then I would do more investigative work. BC.

POST 5Original post

I can sell you both my stock cats that are in good condition for 200 shipped ([email removed]).

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