fullymatted.
Back to search
Rennlist

CEL code: P2098... lean?

Add to repair workspace
Open repair workspace
Original source
7 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHCEL code: P2098... lean?

Leading reported evidence

Clean maf (which looked brand new)

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

But as a goood student I went ahead and cleaned my MAF (which looked brand new) but the CEL came again affter 3 days.

CEL code: P2098... lean?
Frequently discussed work

Check oil cap

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

check your oil cap...

CEL code: P2098... lean?
Read full discussion summary

Leading evidence: 'Clean maf (which looked brand new)' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check oil cap' (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 · 7 captured posts examined · 0 partial discussions

Compare 4 other evidence results

Check oil cap

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

check your oil cap...

CEL code: P2098... lean?

Replace (my 964 was)

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

I'd imagine it's less than $200 and would think it's easy to replace (my 964 was).

CEL code: P2098... lean?

Replace air filter (oem) tomorrow

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'm planning on replacing the air filter (OEM) tomorrow.

CEL code: P2098... lean?

Replace air filter is very easy (see dyi)

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

Changing air filter is very easy (see DYI).

CEL code: P2098... lean?
Frequently discussed actions (8)

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

Check oil cap

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

check your oil cap...

CEL code: P2098... lean?

Clean maf (which looked brand new)

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

But as a goood student I went ahead and cleaned my MAF (which looked brand new) but the CEL came again affter 3 days.

CEL code: P2098... lean?

Replace (my 964 was)

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

I'd imagine it's less than $200 and would think it's easy to replace (my 964 was).

CEL code: P2098... lean?

Replace air filter (oem) tomorrow

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'm planning on replacing the air filter (OEM) tomorrow.

CEL code: P2098... lean?

Replace air filter is very easy (see dyi)

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

Changing air filter is very easy (see DYI).

CEL code: P2098... lean?

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

If it does then replace the O2 sensor.

CEL code: P2098... lean?

Reset 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 did reset the CEL on monday morning and it came back today (thursday)

CEL code: P2098... lean?

Reset cel and see if it comes back

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

I would reset the CEL and see if it comes back.

CEL code: P2098... lean?
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.

7 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.

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

Generation: 20261026T142254Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hi guys! Good source you guys got here... I have a 02 Carrera that had the CEL. Code: P2098: Post CAT fuel trim bank 2, system too lean. I can't find that code anywhere that's porsche related. Did a search and came back empty. But as a goood student I went ahead and cleaned my MAF (which looked brand new) but the CEL came again affter 3 days. The CEL is solid (not blinking). I'm planning on replacing the air filter (OEM) tomorrow. The car is stock with no mods and 82K miles. Thanks for all your help and here's a pic of the car!

POST 2Original post

Can't halp on the CEL. Could it be the O2 sensor? I'd imagine it's less than $200 and would think it's easy to replace (my 964 was). Changing air filter is very easy (see DYI). The car is beautiful! Love the yellow. Let us know what it is? My '99 has 75,000 miles so I might have the same issue soon!

POST 3Original post

P2098 Signal Delay Time for Oxygen Sensor Ageing, Bank 2 – Above Limit I would reset the CEL and see if it comes back. If it does then replace the O2 sensor.

POST 4 / ORIGINAL POSTEROriginal post

Thanks Loren. You are a God! My extended warranty will take care of this but it has to wait ‘til Feb/3rd to let Porsche repair it, otherwise it will have to go to the $5/hour mechs where I bought the car... that’s why I need to keep driving the car for 3 more weeks. Thanks for alll the help. The car drives fine.... (amazing in fact!) I did reset the CEL on monday morning and it came back today (thursday)

POST 5Original post

As long as the CEL is not flashing it should be safe to drive.

POST 6Original post

Joel- Welcome to Rennlist and Congrats on getting a nice looking SY 996. Thanks for posting the pics. Man, somebody is training this latest batch of "newbies" how to do it right!

POST 7Original post

check your oil cap... make sure its on tight... sometimes a lose oil cap lets air into the system and introduces a "lean" condition... although what you describe sounds like a different issue...

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