9 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHpsm/abs warning lights....
Reported or suspected cause
"air mass analyser" an electronic sensory
Reported cause
No successful repair reported for this finding.
1
Identified cause
0
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 report identifying 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.
Reported cause
My first experience was occassionally the lights came on and were reset by turning ignition off, then this increased in frequency - problem was "air mass analyser" an electronic sensory which clipped onto engine air inlet -it had become clogged and was malfunctioning(cost of new one £350 and 20 minutes to fit total cost £400).
Leading evidence: '"air mass analyser" an electronic sensory' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is '"air mass analyser" an electronic sensory' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Check sensors or get a software' (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 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.
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
worth a trip to the OPC to check the sensors or get a software check.....
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
I am still waiting to experience the other five sensors malfunctioning but I can guess the repair cost for each!
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
My first experience was occassionally the lights came on and were reset by turning ignition off, then this increased in frequency - problem was "air mass analyser" an electronic sensory which clipped onto engine air inlet -it had become clogged and was malfunctioning(cost of new one £350 and 20 minutes to fit total cost £400).
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
My first experience was occassionally the lights came on and were reset by turning ignition off, then this increased in frequency - problem was "air mass analyser" an electronic sensory which clipped onto engine air inlet -it had become clogged and was malfunctioning(cost of new one £350 and 20 minutes to fit total cost £400).
These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.
"air mass analyser" an electronic sensory
No successful repair reported for this finding.
1
Identified cause
0
Suspected cause
0
Reported fixes
Read evidence and context
Discussions that report identifying 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.
Reported cause
My first experience was occassionally the lights came on and were reset by turning ignition off, then this increased in frequency - problem was "air mass analyser" an electronic sensory which clipped onto engine air inlet -it had become clogged and was malfunctioning(cost of new one £350 and 20 minutes to fit total cost £400).
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.
9 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
I have a 2001 carrera 4
Occasionally my abs and psm off warning lights come on ! However if I turn the ignition off and restart the lights are off!!!
This has happened 4 times in the last 2 months......
Any comments??
Is it something to be concerned about??
Cheers....
Mark......
Migration info. Legacy thread was 32835
might possibly be related to the brake light switch - when the lights come on again get someone to check if you have brake lights or not -
Migration info. Legacy thread was 35019
this is possibly a maf sensor fault , dirt entering the air cleaner can cause these issues , also check tyre sizes , type , and tread depth , these are very important to abs
Migration info. Legacy thread was 40988
The same happened to me today in my 996 Targa. ABS lights and PSM off light came on, however went off when I started up again.
Mark what was the outcome with yours?
PS I used to have a 5 series BMW with I Drive that was forever telling me things like " You have a puncture" " Your nearside front door was fallen off" "A total non smoking ban will be introduced soon" and other such nonsense which I always ignored because it was such a regular thing. However with this car I am not so flippant when it comes to such warnings.
Migration info. Legacy thread was 45813
I have had an identical problem on my 996 C4 and the bad news is that it gets more frequent until you are switching ignition off to clear the two warning lights every couple of miles. The dealership "expert" told me there are a total of 7 sensors which plug into the PSM system and failure of any will cause the PSM and ABS warning lights to come on. My first experience was occassionally the lights came on and were reset by turning ignition off, then this increased in frequency - problem was "air mass analyser" an electronic sensory which clipped onto engine air inlet -it had become clogged and was malfunctioning(cost of new one £350 and 20 minutes to fit total cost £400). The second time was PSM light on all the time and was found to be a steering sensor (cost £120 for new part, but three hours to fit total £420!).
I am still waiting to experience the other five sensors malfunctioning but I can guess the repair cost for each!
Migration info. Legacy thread was 46416
Hi
Sorted the problem in the end with the help of jon mitchell at 9xx.co.uk
Transpired to be a faulty mass air flow sensor , the part was approx £300 my car had only done 24k so it can be a problem at any milage tho 2001 cars seem to suffer
Hope this helps!!
Migration info. Legacy thread was 46446
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