AirShox EU LTD

On 3/3/2020 at 3:51 AM, JSP said:

I am having a similar problem with my 08 Cayenne turbo. When it is very cold outside and driving a short distance the radiator fan runs at high speed and the temperature gauge reads normal or a bit below normal, ac/defrost off. The heat is working good, turn off the heat and the rad fan still runs full blast until I turn the key off. I had replaced both fans due to the corrosion problems with the modules and that time the rad fan ran all the time full blast and stayed on for 30 seconds after the the key was turned off. The current problem is intermittent and only happens when it is very cold around -10 C  or lower outside. It has 177000 km and I don't think that the thermostat or water pump have been replaced yet. I have read elsewhere that the water pumps usually fail around this mileage. Should the water pump and thermostat be replaced as preventative maintenance along with the coolant temperature sensor? The service records show that the leaking thermostat housing was replaced at 76000 km

What happened? Did you repair the issue?

On 7/13/2017 at 12:54 AM, TomBelgium said:

Seems like piwis can give me more useful information about a P1023 that i got. As you can see the actual value at startup is ten times lower as required.

Hi there, 

Incredible thread!

I am trying to find out why when kick down (3rd, low speeds into 2nd or 2nd into 1st) my CTT 4.8 2008 I Intermittenttly get 1 to 4 misfires on cyl 1 and 5. Mostly cyl 1. Using the "misfire counter, 10 trips", which shows what happened after a key cycle. 

No fault codes, hp adaptation is ~1 (0.9x to 1), idle is at 39-40bar (is there an ecu politics to fluctuates 36 to 40 when tank is under 15L (both LP pumps continuously on). 

Spark plugs are brand new, coils are relatively new (less than 6k miles, no cracks). When I changed the spark plugs, intentionally mixxed coils in ordered to eliminate possibility of a weak one. 

Regards 

On 6/29/2019 at 5:38 PM, GSpence2 said:

As with nearly all Cayenne issues I think a good starting point would be checking and ensuring the battery/batteries and charging system are in good health and operating correctly 

 

I’ve been experiencing some weird drivability issues as well and the root cause is pointing to a possible/probable electrical system issue

Well for a month there has been no issues with the battery. I mean no dead battery or battery icon on the dash... Unfortunately there is no battery management unit to read as in the Q7.

PIWIS shows no under or overvoltage in any of the control units.

Hi there,

I am pretty concerned with this issue:

Bank 1 "camshaft deviation" starts from cold at 11.2 and goes down to 10.5 

Bank 2 "camshaft deviation" starts from cold at 3 and goes down to 2.7

Another interesting fact is MAF sensor deviation:

Bank 1 @ idle = 6

Bank 2 @ idle = 11

Bank 1 @ light throttle = 34

Bank 2 @ light throttle = 22

***just once I saw a fault combo:

P1081 Air mass ahead of throttle valve, partial load

P1094 Air mass ahead of throttle valve, implausible

All faults read with Launch X431PRO

Engine M48.51 368KW, cayenne turbo mid 2008

Sorry for double posting. 

Have you ever found a solution? 

I have a CTT 957 mid 2008 with a P0016 which comes from time to time - NO CEL! 

Deviation bank 1 = 10.5 - 10.9

Bank 2 = 3

Actual values are spot on both sides with the specified. 

Sorry for bringing a 7 year post from the dead! 

Have you ever found a solution? 

I have a CTT 957 mid 2008 with a P0016 which comes from time to time - NO CEL! 

Deviation bank 1 = 10.5 - 10.9

Bank 2 = 3

Actual values are spot on both sides with the specified.