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Discussion summary
YOUR RESEARCHPSM ABS lights coming on, any advice.??
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back
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Reported cause · Original poster
put a new brake pedal switch on there and for the first couple of times of accelerating the lights didn't come on, then did it again and the problem is back...
Leading evidence: 'back' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'back' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Clean 34434/?perpage=15&pagenumber=1' (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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Reported cause · Original poster
that's why I put the small s, not the S, I wish that it was the C4S cab, then it wouldn't be going anywhere.....
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Suggestion
Personally I think it's only worth cleaning the MAF if it has 25-30000 miles on it.
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Suggestion
Is it worth doing (even if the car is running ok?) and how difficult is it?
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back
No successful repair reported for this finding.
1
Identified cause
0
Suspected cause
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Read evidence and context
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Reported cause · Original poster
put a new brake pedal switch on there and for the first couple of times of accelerating the lights didn't come on, then did it again and the problem is back...
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.
14 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: 20261027T000231Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Hi all,
I got my 996 C4 tiptronic about 6 months ago and all of a sudden when you put your foot down, the PSM and ABS lights turn themselves on.. there is nothing else wrong with the car and i reckon that it could be a something or nothing problem.
has anyone else had this problem with there car? I was told that it could be a brake switch, but I can't see how that will work???
any help would be appreciated as i'm selling the car to a friend and need to get it sorted out before he get's the car next week.
thanks.
Eurocarparts.com are usually a bit cheaper than an OPC. You don't say what year your car is, but here are the part numbers for eGas cars:
MY1999-01 (eGas 3.4L): 996.606.124.00
MY2002 on (eGas 3.6L): 986.606.125.01
If it's a C4S (3.6) then you need the 986.606.125.01 MAF. I can't give you a written guarantee, but it is a common problem, and a new MAF is usually the answer. It is a 5 minute job to change - you just need a T20 Torx Security bit for the screws.
sorry, i forgot to mention in the last post it's a 1999 model.. I've put 996 without looking at what i'm typing, it should have said 1999.. is this still the correct part number?
thanks.
that's why I put the small s, not the S, I wish that it was the C4S cab, then it wouldn't be going anywhere.....
thanks for your help, i'll see if i can source one, i've got a friend of mine who works for bosch, so i will see if there is anything that he can locate to help me with it. otherwise i'll get on the net this evening and find the best price i can..
I'd heard that you can clean out the MAF with electronic spray cleaner from RS counters, none residue type, this apparently could sort out the MAF, but there again, i could be talking a load of rubbish..
cheers.
Hi Richard. Could you tell me if there is any truth in vacuuming the MAF to keep it working efficiently? Do I get to it via the air filter box? Is it worth doing (even if the car is running ok?) and how difficult is it? Sorry to bombard you!! Ade.
Personally I think it's only worth cleaning the MAF if it has 25-30000 miles on it. If it has done in the region of 50-60000, and it is causing problems, bin it.
Here's a pic of the airbox. If you have a C4 it has a connector clip which can be a struggle to get off. The easiest way to get it off is to remove the two T20 Torx security screws first, lift out the MAF sensor, turn it around, and you'll see the clip.
put a new brake pedal switch on there and for the first couple of times of accelerating the lights didn't come on, then did it again and the problem is back...
gonna have to get the MAF sensor sorted out and see if that makes a difference.
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