Quote:
Originally Posted by Tinkerer
Thanks here it is using a foxwell NT644 scanner. I understand that porsche uses PIWIS Scanner?
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So all of your codes are misfire codes for cyl. 1-2-3 on the right hand bank.
I see no codes that point to issues with camshaft position or (variocam) issues.
You stated that your car is a 1998 with 48k on the clock.
48k is low mileage so variocam or cam position issues at that mileage although possible would I think be rare.
Now your coil packs (if they have never been changed) are 22 years old.
Perhaps they are beginning to fail.
So following good diagnostic processes always go with the simplest things first then work your way up the ladder step by step to the most complex.
A very simple first test that you can do yourself at no cost.
Is to switch all the coil packs from the left bank to the right bank and vise-versa.
If the problem is the coil packs then you should get codes for misfires on the 4-5-6 side.
When you do this clear all your codes before restating and test driving the car.
If the codes do not move to the 4-5-6 bank then you have proved for certain your coil packs are good.
If the codes come back for the 1-2-3 bank then I would look for a problem in the wiring or wiring connections that feed the coil packs on that bank.
Three questions:
How old is your battery?
Was any recent work done to the car before this problem?
Did the Porsche shop tell you why they suspected the variocam system?