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THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHReplace K&N intake to eliminate check engine light P0446 code
Leading reported evidence
Use k&n filter
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
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0
Unsuccessful attempts
1
Discussions
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Performed · outcome unconfirmed
I've used K&N filter on my HiPo VW with out issue and even on my 3rd Gen HEMI.
Replace K&N intake to eliminate check engine light P0446 code
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Leading evidence: 'Use k&n filter' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'small leak' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Replace from their original programming' (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.
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 · Original poster
Per discussion with my mechanic he identified that the check engine light code P0446 is caused by an small leak from one of the hoses of the K&N intake, which by the way there are no replacement for the hose/fastener (he tighten it an the engine light was off for a day and then it came back), that if I want to not have the check engine light I would need to replace the K&N intake.
Replace K&N intake to eliminate check engine light P0446 code
Replace from their original programming
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
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Suggestion
Like the 5CHN3LLmeister alluded, MAFs and fuel trims don’t like change from their original programming.
Replace K&N intake to eliminate check engine light P0446 code
Replace k&n intake
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
Per discussion with my mechanic he identified that the check engine light code P0446 is caused by an small leak from one of the hoses of the K&N intake, which by the way there are no replacement for the hose/fastener (he tighten it an the engine light was off for a day and then it came back), that if I want to not have the check engine light I would need to replace the K&N intake.
Replace K&N intake to eliminate check engine light P0446 code
Run ability wise ,, i'd think it would help
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.
Replace K&N intake to eliminate check engine light P0446 code
Replace k&n intake
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
Per discussion with my mechanic he identified that the check engine light code P0446 is caused by an small leak from one of the hoses of the K&N intake, which by the way there are no replacement for the hose/fastener (he tighten it an the engine light was off for a day and then it came back), that if I want to not have the check engine light I would need to replace the K&N intake.
Replace K&N intake to eliminate check engine light P0446 code
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.
small leak
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 · Original poster
Per discussion with my mechanic he identified that the check engine light code P0446 is caused by an small leak from one of the hoses of the K&N intake, which by the way there are no replacement for the hose/fastener (he tighten it an the engine light was off for a day and then it came back), that if I want to not have the check engine light I would need to replace the K&N intake.
Replace K&N intake to eliminate check engine light P0446 code
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.
15 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.
Per discussion with my mechanic he identified that the check engine light code P0446 is caused by an small leak from one of the hoses of the K&N intake, which by the way there are no replacement for the hose/fastener (he tighten it an the engine light was off for a day and then it came back), that if I want to not have the check engine light I would need to replace the K&N intake. My mechanic recommended to not make any other investments and that once/twice a year he would check that there are no other codes related to the check engine light.
This is my first 911 and I would appreciate your feedback to follow or not my mechanic's recommendation.
Thanks,
Cesar
Had the same issue with my Fabspeed intake on my last 996 (a 99 C2). These aftermarket intakes are crap. Went back to stock and no more CEL. Will "upgrade" to a 997 3.8l intake on my current C4S soon. Per JR, they flow better than anything else out there.
I did not have that code when I was running that intake. I still regretted running it - at least one MAF was sacrificed at the altar of "cold" air.
The header wrap on the factory snorkel suggests that you (or the previous owner) actually care about the air charge temp - if that's the case, getting rid of this and re-installing a factory airbox will do a much better job than the "seal" around the top of the K&N "airbox."
You should be able to sell the K&N used and get a factory airbox for next to nothing - the line of people expecting intake/headers/exhaust mods to actually matter on the M96 is endless.
If you elect to keep it, you might want to review the installation instructions to confirm that the install was done per K&N's recommendations:
https://b.cdnbrm.com/images/info/k_n/57-7000.pdf
Cesar - Good on your mechanic for not being a snake oil guy! Like Bash Hat says, back to stock. I like my 3.8 box (goes with my 3.8) and Helmholtz delete (love the sound). My K&N still sits on a shelf. The aftermarket add-ones will cost more $$$, time and *** pain than they really are worth. Like the 5CHN3LLmeister alluded, MAFs and fuel trims don’t like change from their original programming.
That
discussion is for another rabbit hole.
Following opinions from too many butt dyno’s resulted in me wasting some coin early on. Eventually I calmed down a little (but not enough according to wifey). Question everything and confirm as much as you can. Lots of knowledge on this and other sites. Lots of fluff and such too.
I've never had an issue with mine. Most people don't clean and oil them (over oiling) correctly. I've used K&N filter on my HiPo VW with out issue and even on my 3rd Gen HEMI.
Has anybody tried a honeycomb air straightener in the intake ahead of the MAF?
Just curious, I don't see Porsche leaving power on the table that a CAI would give..
But run-ability wise ,, I'd think it would help.
GH996,
Per the responses it makes sense to install the stock box and I really appreciate your offer. I've been traveling to Allegan, MI for work which is not that far from Grand Haven. Would you have any inconvenience if I may be able to drive to Grand Haven?
Thanks,
Cesar
I actually work in Holland which is even closer to Allegan. 4270 Sunnyside Drive is my office address. Just let me know what day you will be in the area.
Thanks so much GH996, I'm actually in Allegan this week. If it works for you I can stop by early on either this Wednesday or Thursday, or late afternoon on Wednesday.
Regards,
Cesar
