5 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCH986 S engine problems - Page 1 - Boxster/Cayman - PistonHeads UK
Leading reported evidence
Disconnect maf and all was fine
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
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0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
986 S engine problems - Page 1 - Boxster/Cayman - PistonHeads UK
Read full discussion summary
Leading evidence: 'Disconnect maf and all was fine' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check i'm all ears' (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 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 can book it into my nearest specialist tomorrow for diagnosis but if anyone has some simple ideas that are easy to check, I'm all ears!
986 S engine problems - Page 1 - Boxster/Cayman - PistonHeads UK
Check maf first
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
It just annoyed me because whenever a friend comes to me with symptoms like that, I tell them to check the MAF first.
986 S engine problems - Page 1 - Boxster/Cayman - PistonHeads UK
Replace coils was a good idea in any event
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.
986 S engine problems - Page 1 - Boxster/Cayman - PistonHeads UK
Run issues until
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.
986 S engine problems - Page 1 - Boxster/Cayman - PistonHeads UK
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.
5 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
PistonHeads: 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.
Hi all,
I have a 986 Boxster S (2003 facelift) with around 102k miles on the clock. Last service was July 2020 and it had the full service at a reputable specialist. Oil, plugs, filters, aux belt etc.
In May I took it for an MOT and it failed on a few things, one of them was emissions. I hadn't noticed any running issues until then. Months earlier it had had an occasional stutter around 2000rpm but it cleared up and I forgot about it.
I used it for a few days until the MOT expired and it had started running oddly. On start up the revs would flare and then drop very low. Usually it would just catch itself around 4000rpm and then idle normally, sometimes it would die immediately.
At 5000rpm it would stutter heavily and if it was in 4th gear or above it would just sit at 5000 bucking and stinking of unburnt petrol.
I parked it on the drive to sort out the MOT problems and ordered ignition coils (genuine OEM).
I finished fitting everything today and took it for a test drive. No change to its behaviour.
As I say, plugs are around 5k miles and one year old. Coils are brand new. Any other ideas? I can book it into my nearest specialist tomorrow for diagnosis but if anyone has some simple ideas that are easy to check, I'm all ears!
MAF. Disconnect it and see if it makes any difference?
Air Oil Separator - when they "go" you get all sorts of issues. White smoke, won't rev, stalling, screeching noise.
Thanks- disconnected the MAF and all was fine. Wish I hadn't wasted money and an afternoon on coils but at least they're done now!
Ordered a MAF. All's well that ends well
Semmelweiss said:
Good result for little money then.
Changing the coils was a good idea in any event. I've changed out all of mine as a matter of course in the past.
You are correct of course - no harm in having a new set of coils and plugs on it.
It just annoyed me because whenever a friend comes to me with symptoms like that, I tell them to check the MAF first. Yet I didn't take my own simple advice!
This is a source reference. Confirm exact model applicability in the original material.
