Good Morning!!
So yesterday drove the Panamera (2010 S) to work zero issue, leave work and on start up get PSM Failure. So shut the car down and restarted got the same message and CEL came on this time also. Got home, car drove fine the whole time and scanned it and cleared the codes. Let it sit over night, this morning started again and PSM Failure again but no CEL. Drove to work fine again and when I shut it off and restarted the PSM and CEL came on. I scanned it and get the following.
P0016-cam shaft postion
P0302 Misfire 2
P0304 Misfire 4
I cleared them all again and letting it sit till I'm off work today.
Any thoughts on where to start? TIA!!
~TD

 

Have you checked your battery? How many miles on your car? Original coil packs? These might be the two most likely culprits - best of luck!

 

Just hit 98K on her, I'm assuming original coils as nothing on the service logs said anything about it and I'll have to check the battery today as I have not done that. I did order a new cam position sensor that will arrive today as I from what I had read that could be an issue also. Thoughts on that?

 

Hi it's possible that is timing chain problem. The chain is too long after kilometers.

 

Hello! Yea I had read that as well. Just hoping thats a last try option and was thinking that it doesn't even has 100k on it yet so I would hope it wasn't out already..is there miles mark (roughly) on those? Really didn't see anything about that.

 

No it's a possibility. But when it's chain there is problem on two motor side .
I think that's is a coil problem.

 

I checked the battery and it's good, finally got the cam position sensor so I'm going to swap that on Monday if that doesn't solve it all try the coil packs. Any good place to get those? Thanks for the feedback guys!!

 

Many have had good luck w/ FCP Euro, Suncoast Porsche has also been a reliable supplier w/ good pricing. Fingers crossed the cam position sensor resolved your issues.

 

So replaced the sensor, prior on start up I would get the PSM failure right off. This time it took a few seconds before it came on. Scanned it again same code however odd enough I only had a misfire on #2 and not #2 and #4 like prior. So I'll get some coils ordered and try that next...love chasing issues LOL thanks for you all your help!!