08 Cayenne, 70k. Did a 300 miles trip today, on the way back was on cruise control at 75mph. It shifted from 6th gear to 5th gear during an uphill, then CEL flashes and felt power loss. I soon pulled to the side and shut off the engine. (Last time similar issue happened was at 50k and changed all 6 plugs and coils.) Waited 5 minutes and restart the engine, CEL still there. Waited another 15 minutes, still there.
Wife was on panic mode, and since it was a steady light I decide to slowly drive home. During the 60 miles drive, the CEL stays on but flashes only when accelerate on uphill. I have to use Tiptronic and keep the rpm around 2500-3000 then it feel smoother otherwise it shakes.
When finally got home did a Short test on Durametric, the results are below:
Bosch Digital Motor Electronic 9
P0768: Random/multiple cylinder misfire detected – Upper limit value exceeded, test conditions are not-complete, fault is currently active and causing a DTC light.
P0774: Cylinder 6 misfire detected
P0770: Cylinder 2 misfire detected
P0771: Cylinder 3 misfire detected
P0773: Cylinder 5 misfire detected
P0769: Cylinder 1 misfire detected
532: Power supply – value below lower limit value
Drive motor for temperature valve left
3C90: Control module for seat occupancy detection
Steering wheel electronic
1749: Tiptronic switch on steering wheel down. Open circuit/short to B+
Cylinder 1,2,3,5,6 misfired, does this mean I only got a cylinder running during that 60 miles drive back home? Can someone help to tell me what I need to do to get the above code fixed? Thanks in advance.