PSM & ABS FAULT ON 996

[welshnobby]

Afternoon gents.

I've been having an intermittent problen with my '01 996:-
It started a few months ago with the ABS and PSM disabled light appearing on the dash. I stopped and turned off engine...all back to normal when restarted. This happened intermittently over a period of a month, when accelerating hard in a low gear between 3-5k rpm. This then developed further...when the disabled lights came on the dash there was associated big flat spot in power between 3-5k rpm...and on a couple of occasions no power at all just idle revs requiring immediate pulling over and restart ignition to solve problem.
I took it into OPC Notts for a diagnostic and they suggested a faulty Mass Air Flow Sensor which was dully changed under warantee. This solved the problem for a couple of weeks. Today however the lights appeared on the dash but none of the power symptoms thus far.


Any suggestions?

[Don]

Quite possibly a loom problem. I had this on my first Boxster S - I believe the just changed bits over from a working car until mine worked!

This kind of thing needs an OPC to sort it out for you im my experience...

[welshnobby]

...thanks. Strange how the new Mass Air Flow Sensor cured the problem for a while.