Darn idiot lights

[ignatzcatz]

When I saw a little engine symbol pop up on the dashboard I thought the worst. But on checking through the owners manual is designates that something is amiss with the emissions system. I have had this problem before on an Audi where I had omitted to securely screw on the oil filler cap. So that was the first thing I checked but it was on tight also the dipstick was pushed down home so I have to look somewhere else. So have any other Cayenne owners had this happen and what where your findings. BTW the Cayenne is a 2010 3 litre V6 turbo diesel.
Just love to hear from you.

[iamtheari]

The check engine light basically began life as an emissions control system warning light, and in my cars I have never had the engine light come on for anything but an emissions control problem. Real problems that put you and your car in danger tend to come more directly and from other sources: low oil pressure, brake booster fault, etc. The newer the Porsche, the more likely it is to have a specific sensor and warning message for a real problem.

What code did you get? Probably someone here will know the likely causes for you based on the code, although I don't know how many Cayenne Diesel owners watch this forum. If it helps, my 2004 Cayenne Turbo sometimes gets a CEL in warm weather when opening the fuel cap and it will probably resume that behavior when the weather improves, until I find time to install the replacement air line that has been sitting on my shelf all winter. Yours could have a similar vacuum line issue.

[ignatzcatz]

My little problem turned out to be a fault on the intake manifold flap sensor on 1-3 cylinders. It will probably re-occur and then I shall need a new intake manifold. The cost should be under UK£1000, just. Happy days.