D. Castelo

Hello, I've been trying to solve this problem with my local mechanic but it hasn't been easy... The car has 205k km and has had a lot of serve put in by the previous owner, including complete engine rebuilt.
My mechanic suspected it was the starter engine and so we changed it for a new one, but the problem persists.
No errors or codes on diagnostics...

https://drive.google.com/file/d/1-5A4mM0O6ZQvfZBn11taJTFFc4cG82av/view?usp=sharing_eil&ts=5d1f226e


Thanks for the help

user 83838290

Replace crank position sensor and cam position sensor(s).

arthropraxis

I had the same issue. It was the battery. The battery voltage was fine but it was 9 years old must have had a dead cell.

Dilberto

Cayenne Turbo is very fussy about battery voltage. Once the you test 12.3v - that is the "point of no return" and battery is essentially shot. Get a new Bosch S6588b AGM battery and be on your merry way....