[Mike80911]

Thought I would post this and maybe help someone else with a similar issue diagnose their car. So I go to start the Cayenne the other day and it starts but running very rough and than stalls, start it again idling then searching and stalls again. After doing some research I pull the fuse controlling the left side fuel pump and the car actually runs. So the conclusion was bad left side fuel pump. I go to Porsche to get a pump and the parts guy says replace both because the other one is going to go real soon. He says we always replace both when either goes. I tell him not necessary I will only be needing the left one which he gives me for an excellent price as I shop there a lot. Get home and get ready to replace the pump and the right side goes out. Back to Porsche buy the right side and the fuel pump and replace everything and now she is back to normal. Should have listened to him in the first place and would have saved 2 hours of time running around.