10 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHABS and PSM Warning Lights Illuminated while Accelerating
Reported or suspected cause
covered several times earlier
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
Do a search, this issue is covered several times earlier.
ABS and PSM Warning Lights Illuminated while Accelerating
Read full discussion summary
Leading evidence: 'covered several times earlier' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'covered several times earlier' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Reconnect loose sensor or ground' (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 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
Hopefully somebody has a history of this and knows a quick and simple cure like reconnect a loose sensor or ground.
ABS and PSM Warning Lights Illuminated while Accelerating
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.
10 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
Turned out the power commander had a new flash that solved the problem.
So I was giving one of my friends a ride in my 04 C2, and while at the top of third gear, the ABS and PSM lights came on, and the MFA said drive to dealership, ABS fault, etc. Then I shut the car off and turned it back on and the lights were no longer illuminated and there was no warning on the MFA.
Any ideas what would have caused this?
Check to make sure the ECU has a solid connection and the ground is good. Not sure if a low battery voltage would cause the error but see if the electrical is good.
If your ECU has been flashed it wouldn't hurt to redo it to make sure it isn't corrupted. If it’s a send the unit away deal then contact them and wait for more answers here because it might be a sensor inputting erroneous errors to cause it.
I had a disabling error on a bike flying past 8500rpm with plenty left. Accelerating slow the error wouldn’t happen. Turned out the power commander had a new flash that solved the problem.
All I can think is since it’s so many errors at once it covers everything. Only thing I can think of is an ECU foul up. What causes it is not enough or too much electric, bad flash or something like a sensor output goes into an abnormal input to it. Hopefully somebody has a history of this and knows a quick and simple cure like reconnect a loose sensor or ground.
Really? The MAF causing an ABS and PSM fault?
For what it's worth I have a GIAC 93 chip and EvoMS V-Flow Intake. However, only 18,000 miles on the car and there is no throttle lag or lack of power that would suggest a bad MAF.
for some crazy reason, a bad MAF will effect the ABS/PSM fault. When my MAF went south, going over 4500 rpm would cause the ABS and PSM lights to come on.
Rick
99 996C4
87 944S
