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Anyone have PSM/ABS kick off on a C4...

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7 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

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YOUR RESEARCHAnyone have PSM/ABS kick off on a C4...

Leading reported evidence

Clean mass air flow sensor

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
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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
Anyone ever try just cleaning the MAF?
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Anyone have PSM/ABS kick off on a C4...

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Leading evidence: 'Clean mass air flow sensor' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Clean mass air flow sensor' (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.

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1 matching discussions · 7 captured posts examined · 0 partial discussions

Frequently discussed actions (1)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Clean mass air flow sensor

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

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
Anyone ever try just cleaning the MAF?
Original post Read captured discussion
Anyone have PSM/ABS kick off on a C4...

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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.

7 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

Rennlist: 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.

Outcome without a verified action link
I stopped for gas, restarted and all was back to normal.
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No unique explicit quoted action; no causal link assigned

Generation: 20261027T022239Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

When making a "abrupt" move? The PSM/ABS kicked off when I down shifted 2 gears (tip) and rapidly accelerated at highway speed the other day. I stopped for gas, restarted and all was back to normal. First time I have experienced it turning itself off. Thoughts?

POST 2Original post

No, but I once had a problem when a rear wheel speed sensor died on my '99 C4. I was able to look at the values in real time with the durametric and figure out which one was dead.

POST 3Original post

happened to me on the highway as well.. they both just kicked on for the remainder of the drive home , next time i started it they were both off. Although soon after i had problems with my MAF, which was triggering CEL, ABS, PSM lights. replaced it, and all was good

POST 4 / ORIGINAL POSTEROriginal post

Hmmmmmmmmmmmmmmmm Interesting. Anyone ever try just cleaning the MAF? I did also get an 1128 code. I suppose it might be time, the car has 123k on it.

POST 5Original post

I had the same senario. Heavy acceleration PSM/ABS lights came on. I did a search and came up with a bad MAF. Cleaned it twice and was fixed temporarily(few weeks) Ordered a new one(pelican) installed it and haven't had problem return again(several years).

POST 6 / ORIGINAL POSTEROriginal post

Thanks........ This place is great.

POST 7Original post

Brake switch is another gremlin that does the PSM/ABS intermittent.

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