2017 Macan S
Yes it is high pressure but it's relieved when engine is shut off.
Did you end up doing this? I would be interested to learn what and how you did it.Good info! Thanks! If I do the job, the engine will be stone-cold which will add the the safety factor. Since everything is easily accessible, it should be fairly straightforward. I plan on inspecting the cam follower as well.
Cool. I purchased all parts from a dealer (all OEM). Got the two pumps, cam followers, the two tubings (so as not to reuse the existing ones), all gaskets from parts that needs to be removed, etc…I decided to let an indie shop do it. They hired a former Porsche dealer's senior mechanic and I have great confidence in his ability. In all probability, I could've changed out the part but, as I understand it, there's some electronic adaptation required. I would've gone with the aftermarket pump but they installed an OEM Porsche pump and a new cam follower so, at least I've got a warranty on the parts.
OK, thanks. I had discounted the High Pressure Fuel Pump being my problem because I don't get a Diagnostic Code related to low pressure on the fuel rail but I didn't think about the HPFP electrical connection. The performance of my car is fine. No stalling, no hesitation, no difficulty starting. Very odd.@HandyAndy82: I merged your thread with 2 others on the same subject.
Take a look at post #16. It appears its the pump's electronics rather than some mechanical issue that is the root cause for these failures.