991 - Engine Problems, any idea?

[jklondon]

Picked up a 991 PDC CS (2012) from a porsche dealer 2 weeks ago. So far car great then yesterday started developing engine trouble:

- In low revs feels like it will stall.
- After a while started to get Engine Control Fault / PSM Warnings on dashboard.
- Restarting the car same errors appear and the engine sounds like its struggling.

Googling around others seem to have had problems with similar issues but solutions vary a lot.

Obviously will call dealer tomorrow first thing but any insights from the community here welcomed. Really hoping its not a dud engine!

JK

[Magic919]

Might be a flat battery.

[GT4P]

Does sound electrical so I wouldn't worry about a 'dud engine'

[jklondon]

video here if it helps:

https://www.youtube.com/watch?v=bbP4LJxFZl8&fe...

drove car for 2 hours before so do not think its battery, also if just electrical why is the engine struggling for power.

[GT4P]

Coil pack?

[fot0]

Ensure the battery is approved, believe these are chipped and can cause all sorts of problems if not (and will affect warranty).

[red997]

my money would be on the coil packs

had exactly the same symptoms / warnings on my Panamera 4s, and it was the coil packs.
One day, Porsche will work out that the chocolate ones they use don't last...

Appears to be a fairly common problem, and not related to specific models

[jklondon]

Thanks - does anyone know if checking coil packs is on the checklist for when they sell an approved used porsche? Or better still does someone have the checklist?

[Magic919]

Just get the car recovered, Porsche will fix it.

[jklondon]

Thanks - getting it recovered now, although they are going to send technician first to see if they can fix. Seriously hope they dont just reset the warnings and leave!

[Magic919]

I take that to mean the RAC guy will turn up and pronounce it broken. Then they send another guy to recover it.

[rbh]

Hi I had a similar problem sometime back and it was found to be a valve lift solenoid that had failed. Mine was fixed under warranty

[davidlaurel]

fot0 said:

Ensure the battery is approved, believe these are chipped and can cause all sorts of problems if not (and will affect warranty).

What are you talking about....a chipped battery?!