4 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHNewbie hoping for 996TT MAF sensor help!
Leading reported evidence
Adjust with a porsche tester
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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Performed · outcome unconfirmed
The idle speed is programmed in the fuelling map, and can't be adjusted with a Porsche tester.
Leading evidence: 'Adjust with a porsche tester' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'intake/vacuum leaks' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Adjust with a porsche tester' (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 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
Setting the idle correctly is really basic and done via the computer and tested on a test drive!
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
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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 suspect a cause
1
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Suspected cause · Original poster
Took it back to the garage and the fault codes were weird enough for them to suspect it was the MAF.
Outcome qualification: Negation, uncertainty or missing explicit repair resolution overrides the raw extraction signal.
Reset maybe
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
- as it didn't have the idle problem prior to the engine out job, should something have been reset maybe?
Outcome qualification: Negation, uncertainty or missing explicit repair resolution overrides the raw extraction signal.
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.
4 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Porsche Club GB: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 1 adjusted by outcome qualification.
0 acknowledgements have no verified action link; they do not establish a repair result.
Generation: 20261027T013556Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
I'm gonna be cheeky and jump straight in with a plea for some tech help on my first post.
The past 12 months has seen a love hate relationship with my first Porsche.
I finally got to the bottom of all the niggles following 12 months of ownership and back and forth to the garage which finally resulted in the engine being removed for a faulty oil cooler with a leak - ouch!!!
So, for the past 6 months or so the car has performed well on some days and was heavy and didn't boost properly on other days. It was pot luck - a bit like it's owner me thinks!
I drove it away from the garage following an 'engine out' oil cooler replacement a couple of weeks ago and the thing all of a sudden started idling weirdly. It drove well but when in neutral it would rev up to circa 1100 and stay there. Took it back to the garage and the fault codes were weird enough for them to suspect it was the MAF. After a quick swap with second hand MAF from another similar model, my car had never run so good. It was performing like never before and I was confident it was finally sorted and my porsche paranoia over!. However that was short lived!
A new MAF was ordered and the following day it was taken back to get the new part swapped out for my temp loan MAF, same part number as both previous ones - 996.606.124.00. Then I drove away only to find that the idle was back up around the 1,100rpm mark. The car is running better but the idle is all messed up again. I was expecting it to settle but it simply isn't right.
It is going back in next week for another job - but was hoping someone could let me know if this sounds like a common problem when installing a new MAF? - as it didn't have the idle problem prior to the engine out job, should something have been reset maybe?
To add to the bizarreness, my in dash display brightness is now all over the place and has a mind of its own when the seat belt message is showing. Arghhhh![
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Any help would be gratefully received.
Many thanks
Are you using a well known Porsche specialist!?
If they havent fixed after a couple of visits maximum you need to use someone else.
Setting the idle correctly is really basic and done via the computer and tested on a test drive!
Not on a 996 Gordon. The idle speed is programmed in the fuelling map, and can't be adjusted with a Porsche tester.
Welcome Gavin!!
It should idle at about 720rpm with the aircon switched off, and will increase a bit when you switch it on. At 1100rpm, I would suspect a vacuum leak. It could be that they haven't reconnected a vacuum line when the engine went back in.
Thanks chaps.....
...and Richard, this makes sense, thanks a lot for your time and for the welcome.
I guess the only thing that may spoil that theory was the way it was running when I had the borrowed 2nd hand MAF. It was running soooo well for those couple of days and now with the new one I'm back to high revs?!?!
More to go on this clearly; will post an update following my trip to the garage next wednesday.
This is a source reference. Confirm exact model applicability in the original material.
