6 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHBinned my Fabspeed intake
Reported or suspected cause
mechanical
Reported cause
No successful repair reported for this finding.
1
Identified cause
0
Suspected cause
0
Reported fixes
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Discussions that report identifying a cause
1
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Leading evidence: 'mechanical' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'mechanical' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Check motor' (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.
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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
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Performed · outcome unconfirmed · Original poster
They smoke checked the motor for vacuum leaks and reported it was tight as a drum, no leaks.
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.
6 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.
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Generation: 20261027T011819Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
When I bought my 996 last Jan the previous owner was upfront about getting an occasional CEL with codes 1123 & 1125. He suggested it could be the MAF sensor, as did the Indy shop that did the PPI. When I got the car delivered there was no CEL but with 70K miles decided it couldn't hurt to put a new MAF on anyway. After putting on a couple thousand miles I got the CEL with the same codes. Car was running great, but I wanted to get the CEL checked out all the same. Took it to NARW here in Reseda (great guys). They smoke checked the motor for vacuum leaks and reported it was tight as a drum, no leaks. They had 2 theories about the 1123/1125 codes. The codes were indicating it was running lean. They said one possibility was bad O2 sensors or that the Fabspeed intake was throwing off the MAF as it doesn't have the little air return elbow that the stock intake has, causing turbulence around the MAF. Since I had the stock airbox included with the car when I bought it I removed the Fabspeed and put the stocker back on. Didn't cost me anything (as opposed to new O2 sensors) other than 15 minutes with a couple screw drivers to switch it out.
This was about 4 months ago. No CEL in 2,000 miles so pretty sure the FS was the cause. Wanted to post this up. There may be other folks with this issue and maybe it'll be of some help.
Some residents of this forum are pretty vocal about CAI�s being more trouble than they are worth - with the one exception being the Evoms unit.
Good info though....
Exactly. FS intake are junk but they still trade.. I had 1st gen evoms intake and didnt have a problem. Still have the stock intake somewhere kicking around since selling my 996aero.
My problem was mechanical. The cone interferred with the oil fill cap. A loose oil fill cap will pop a code. Luckily I found it before spending $500 minimum at a dealership.
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