Rennlist

Cel codes on the 99.

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7 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHCel codes on the 99.

Leading reported evidence

Replace maf and it was good

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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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 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
I replaced the MAF and it was good for a few months then they came back.
Original post Read captured discussion
Cel codes on the 99.

Frequently discussed work

Clean mass air flow sensor

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
Remove the K&N (I think I remember I gave you my old K&N) air filter and clean the MAF.
Original post Read captured discussion
Cel codes on the 99.

Read full discussion summary

Leading evidence: 'Replace maf and it was good' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Clean mass air flow sensor' (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 · 7 captured posts examined · 0 partial discussions

Compare 1 other evidence results

Clean mass air flow sensor

Suggestion or failed attempt

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
Remove the K&N (I think I remember I gave you my old K&N) air filter and clean the MAF.
Original post Read captured discussion
Cel codes on the 99.

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.

Clean mass air flow sensor

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
Remove the K&N (I think I remember I gave you my old K&N) air filter and clean the MAF.
Original post Read captured discussion
Cel codes on the 99.

Replace maf and it was good

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
I replaced the MAF and it was good for a few months then they came back.
Original post Read captured discussion
Cel codes on the 99.

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: 20261027T003124Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

This is the second time whiting the last couple of months CeL comes in. 99, fab speed x pipe no cat with the cheaters. Anyway the codes are 1126 and 1124. I do now that at least two of the 02 sensors had 993 part numbers when we were putting the x pipe on. Now since both banks are there , the fix finder said to look at the mass air flow sensor. Unfortunately the part store was out of the crc mass air sensor cleaner which I wanted to try first. The car has the Carrera 3.8 s airbox. Suggestions recommendations will be greatly appreciated Car seems to run great.

POST 2Original post

Remove the K&N (I think I remember I gave you my old K&N) air filter and clean the MAF.

POST 3 / ORIGINAL POSTEROriginal post

Quotes source post: 18316182

it has the kN filter when I bought the air box from sheesam. Anyway autozone was out of the CRC air mass flow cleaner, I�ll try advance. Thanks, any news on your FSI rebuilt??

POST 4Original post

Oh, maybe I gave it to Justin or Rick or Zeshaan or Chris or… If you can’t find any let me know. I’m fairly certain I have some. Engine has been pulled and is being disassembled this week.

POST 5 / ORIGINAL POSTEROriginal post

Quotes source post: 18316609

I guess now the whole tamale is the R engines at FSI/LN. I�m going to wait on doing the dyno tune on the turbo so we can compare your 4.0 and the turbo. Yes I know you�ll have to break it in, that�s fine, The turbo is ridiculous fast as it is. Thanks.

POST 6Original post

I am throwing those codes as well. I replaced the MAF and it was good for a few months then they came back. I’m pretty certain mine are being caused by vacuum leaks. I hooked it up to a machine and found 3 places smoking like a chimney.

POST 7 / ORIGINAL POSTEROriginal post

Quotes source post: 18316800

I�ll work on it to see what happens. As long as I get to pass Texas inspection I don�t give a fck. Pretty soon it�ll be a classic no emissions at all.

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