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I changed mine last year after 30,000Km with about 130000km on the car and they looked cleaner that those. I do use the OEM Beru plugs.
Call me anal but when I get home from a drive and park in the garage I almost always open the hood to let the engine cool better. With the hood closed things really bake in the engine compartment after coming to a stop. I do it on all of my cars.
hahnmgh63 replied to ciaka's topic in 9PA, 9PA1 (Cayenne, Cayenne S, Cayenne Turbo, Cayenne Turbo S)Try these guys, they ship around the world. https://www.kufatec.com/
Keep it for at least another year to get some money out of your time and repairs. Also good to see after a year if the next Gen Cayenne has any problems although sometimes we know they don't show up for a couple of years.
Codes cleared, you did a highspeed run down the A3 or A5 and all is well?????
hahnmgh63 replied to cayenneturbo's topic in 9PA, 9PA1 (Cayenne, Cayenne S, Cayenne Turbo, Cayenne Turbo S)I've been to just below the headlights before and very slow. Definitely wouldn't recommend going any higher. My low tone horn failed soon thereafter but the high tone still works fine, that was about 2yrs ago.
Congratulations on finally fixing that problem. A lot of work but you've fixed a lot of weak points which will contribute to long term reliability. I can't remember, do you have stock air filters? A more open filter can let some of the intake and/or Turbo whistling noise through.
I may have been mistaken quoting the diagram number Lewis. Are you saying that Porsche has chosen to only to only sense off of one Turbo? On my Audi with ME7.1.1 both wastegate hoses go to a tee then onto the N75 and both Turbos have a sense line that tee's then goes onto the N75.
Great discussions here, yes, a plugged or disconnected line should and will cause an quick overboost before the ECU shuts it down with a fault/limp mode. Keep in mind that lines (picture above) 10 and 5 (from each Turbo) go to a Tee before connecting to the N75 valve. So line 10 may be Ok but line 5 may be the problem. This is where my portable Snapon Bk6000 video scope saved me on my Audi.
The N75 compares the ambient air to the compressed air from Turbine side (cold side) and adjusts boost accordingly. If you have a leak in the line going to the cold side from the N75 the sensed pressure will be lower than actual and the Turbos will try to overboost for a few seconds then the ECU will detect it, through the MAP sensor I think and will cause limp mode or just plain reduced boost. I had this happen on my Audi RS6 which also uses Motronic 7.1.1. Had just did an engine pull & replace, then had a custom tune and I started asking the guy for a tune with less boost. He gave me a custom tune or two with lower boost but said most other RS6's were using more boost than I asked for and weren't having a problem. I started thinking N75, used a spare to no avail, then used my Snapon video scope and started scoping the lines to the Turbos, they went from the N75 to a Tee then went to each Turbo, one was completely disconnected so the line was using ambient air or something in between due to one side being disconnected. Hooked up the line and all was well. While it was happening it pulled like a beast for a few seconds before limp mode kicked in.
Very similar on the 955 to the 957. Scroll down and download his pdf. I installed mine under the plastic trim panel so you don't see the can but it does catch a fair amount of oil that would otherwise be coating the Intercooler, throttle body, intake manifold, and turbos.
Oil isn't good but it is normal. Most of the oil comes from the PCV vent system and not from the Turbo seals. I found the delamination in my Y-pipe also a couple years ago and happened to find a new old stock IPD plenum to replace it. I don't think I would ever pay full price for the IPD product, it is better made and better flowing than the stock plastic pipe but not that much better. With that said, the stock plastic Y-pipe is pretty cheap to replace. Also, I installed two Oil catch cans in the PVC system to catch some of the oil going to the Intercoolers and intake, they do make a huge difference. Oil in the Intake air reduces Octane when mixed with the fuel, so in effect lowering performance by the ECU reducing timing and/or boost.
hahnmgh63 replied to Kikokiko1976's topic in 9PA, 9PA1 (Cayenne, Cayenne S, Cayenne Turbo, Cayenne Turbo S)I'm at 91K on original pumps ('06 CTTS). Probably around 100K I will do the pumps/filter as preventative.
hahnmgh63 replied to lewisweller's topic in 9PA, 9PA1 (Cayenne, Cayenne S, Cayenne Turbo, Cayenne Turbo S)Sorry, way late as I have been gone for a couple of months but yes, that's it.