10 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHMAF?
Reported or suspected cause
lambda sensor
Suggestion or failed attempt
No successful repair reported for this finding.
0
Identified cause
1
Suspected cause
0
Reported fixes
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Discussions that suspect a cause
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Suspected cause
This could be a number of things, but most likely a failing lambda sensor.
Leading evidence: 'lambda sensor' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'lambda sensor' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Check lights' (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.
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Suggestion · Original poster
Gentlemen, I've had the MAF light come on, or at least what I assume is the MAF light and have tried cleaning the sensor and swapping it for a borrowed one.
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
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Suggestion · Original poster
Gentlemen, I've had the MAF light come on, or at least what I assume is the MAF light and have tried cleaning the sensor and swapping it for a borrowed one.
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.
10 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Porsche Club GB: 1 discussions
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Generation: 20261026T165820Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Gentlemen, I've had the MAF light come on, or at least what I assume is the MAF light and have tried cleaning the sensor and swapping it for a borrowed one. The light seems to come on when first starting the car but, if I turn the engine off and then back on, it go's out. Is there anything other than the MAF sensor that can bring this light on?
Actually, a MAF failure will not throw a Check Engine Light on a UK 996, because the DME is programmed to store a fault code, but not switch on the CEL.
As Graeme says, you need a code reader or diagnostic tool to read the fault codes and make a diagnosis. There are all sorts of things that could cause a CEL, and it is guesswork without.
Could well be the brake light switch. It's very common and cheap to fix. Have a quick Google on it
http://www.design911.co.uk/fu/prod7161/Switch-brake-pedal-Porsche-997-MKII---987-MKII---987C-MKII-99661311302/
Hi - are you referring to the CEL? (check engine light). This is an amber light with a picture of an engine.
This could be a number of things, but most likely a failing lambda sensor. Wise to get the fault code professionally diagnosed, or as someone else suggested buy a code reader.
KR Lee
If its the Brake Light Sensor I presume the Brake Light would not Work!!
Don't forget if its a VERT the hood will not work if the Brake Light Sensor is dodgy
Wonder if that's why hood sometimes doesn't work
When it happens again I will check the lights!
The brake light switch tends to start going with an intermittent fault, this triggers what looks like random ABS/PSM faults which can also be triggered by a faulty MAF. So it's easy to think the MAF is playing up when really it's just the brake light switch.
If a tester is plugged in then the fault codes for the MAF and the brake light switch are different it's just the same light on the dash that can be triggered by both.
