13 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHPicked up 996 yesterday
Reported or suspected cause
mass air flow sensor
Suggestion or failed attempt
No successful repair reported for this finding.
0
Identified cause
1
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 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.
Clean ) or you have unmetered air entering the engine
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
Either your MAF is faulty or dirty (they last say 50k miles at most and they die quicker with oiling from a K&N style filter and repeated cleaning) or you have unmetered air entering the engine after the MAF or a leak in the exhaust system, or a faulty injector (fuel pressure).
Leading evidence: 'mass air flow sensor' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'mass air flow sensor' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Clean ) or you have unmetered air entering the engine' (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.
Clean ) or you have unmetered air entering the engine
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
Either your MAF is faulty or dirty (they last say 50k miles at most and they die quicker with oiling from a K&N style filter and repeated cleaning) or you have unmetered air entering the engine after the MAF or a leak in the exhaust system, or a faulty injector (fuel pressure).
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
The low idle is because the car is running too lean.
These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.
Clean ) or you have unmetered air entering the engine
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
Either your MAF is faulty or dirty (they last say 50k miles at most and they die quicker with oiling from a K&N style filter and repeated cleaning) or you have unmetered air entering the engine after the MAF or a leak in the exhaust system, or a faulty injector (fuel pressure).
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.
13 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
911uk: 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: 20261026T105141Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Hi all,
Well i was not anticipating my new 996 to arrive so early on in my search but here I am. Great car, handles great with factory M030 set up. Loved the long drive back. This is my 5th 911, all the previous ones have been air cooled but this shape has grown on me and so here i am.
An issue at the moment is that at idle it revs and holds at 650rpm, which seems low to me, oil pressure sits at 2 when fully warm. Over the last year the car has had a new MAF, new coils and was serviced fully (major service) a year ago but has only done 2000miles. Any ideas would be appreciated. It has had a re-build in its life at 65k, currently on 86k.
Here is a pic. It would be rude not to post a pic. It is a C2 manual 996.1.
Paul I am referring to revs at idle, which are at 650 rpm, which I am assuming a bit low. Should it be around 800 mark?
Getting used to the car at the moment will make a comparison in a week or two.
That does seem low.
Engine idle without a/c is 700-800. With a/c 900-1000.
Either your MAF is faulty or dirty (they last say 50k miles at most and they die quicker with oiling from a K&N style filter and repeated cleaning) or you have unmetered air entering the engine after the MAF or a leak in the exhaust system, or a faulty injector (fuel pressure).
The low idle is because the car is running too lean.
Any other symptoms: Smoke, smells? Do you have a performance filter/induction kit?
Still most probably the MAF. Get it tested on a diagnostics machine (PIWIS/PST2) - or stick a new one in or swap with someone's whose works (obviously it has to be the same MAF model) - if your's is fine and their's dies - QED!
Thanks traitors responses guys. GT4 thanks fit your breakdown of what could be the likely culprit.
There is snow up here at the moment, so don't fancy driving her at the minute. I will try and get to the bottom of the problem next weekend as I think I will tuck her away this week. Having said that she will be my daily driver, so will look forward to next week weather permitting.
Once I have had her a while I will post what I think of her compared to the 911's of yesteryears. Look forward to that.
Gr4 it's just had a new MAF sensor, not sure of what filter is in there at the minute. Looks to me many an hour will be spent examining possible causes. I shall report back my findings.
Couldnt agree more Ant. Alot of car for the money. Everybody who has seen her has made a very positive comment. I wasn't never really a 996 man to be honest but have really grown to love her. I think it is the best 911 i have owned, fantastic in all departments. I am really pleased with her. I will post more pics once the weather improves.
