P 000A error code

[swpender]

I cant find mention of the P 000A code mentioned in the OBD II codes or in the forums, so if anyone can direct me, much appreciated.

2008 Cayenne S

I've been unable to shake this code, even after both cam shaft arms and sensors replaced. The shop tells me that the culprit is most likely sludge build up caused by derelict oil change routine, and the best solution is a series of 3000 mile oil changes to reduce the build up. Apparently, the death star appears if this doesnt fix and I'm pulling the engine to access an internal screen which serves as another filter, deep in the engine. Needless to say, the direction of the conversation gives me pause on several levels.

1- Oil changes on schedule

2- Why would the cam arm fault remain on after replacement and reset

3- Mechanic says 'DO NOT USE ANY OIL SYSTEM CLEANING ADDITIVES"

4- Is there really a screen deep in the bowels of the engine that can foul?

If anyone has had or heard of this issue, I would appreciate some advice.

Thanks,

Steve

[wvicary]

I'm not familiar with that fault code. Did you use a generic scan tool to retrieve the code or do you know the Porsche fault code? The only screen in the engine for the oil system is on the oil pump pick up. If it was restricted there would be other pressure faults also.

[swpender]

Thanks. The code was initially from a generic, but garage used PIWIS tester. States P000A for Bank 1 inlet camshaft control slow signal implausible.

[JFP in PA]

P000A is a generic code for a slow cam position response, but if it is correct, it could be the cam position sensor and may or may not have anything to do with the oiling or solenoid system. Before I went tearing into anything, or spending a lot of money on parts or other "fixes", I’d get the vehicle rescanned with either a real PIWIS or the Durametric system; this would not be the first “ghost code” I’ve heard coming from knock off PIWIS systems…………..

[swpender]

Thanks. Sounds like a plan. How can one tell if a PIWIS is real or not

I got this response from the OBD2 reader I use from Lemur BlueDriver:

Hi Steve.

Trouble code P000A is "Intake (A) Camshaft Position Slow Response Bank 1"

Probable Causes:

1. Sensor or solenoid faulty

2. Connector terminal contact is damaged or corroded

3. Wire harness - Check harness for correct voltage, open, short to ground

or short to voltage

4. Update control unit software - Check for the latest control unit update

5. Powertrain or Engine Control Module faulty

Edited January 15, 2012 by swpender

[swpender]

Thank you for the documentation.

Edited January 18, 2012 by swpender

[JFP in PA]

Thanks. Sounds like a plan. How can one tell if a PIWIS is real or not

I got this response from the OBD2 reader I use from Lemur BlueDriver:

Hi Steve.

Trouble code P000A is "Intake (A) Camshaft Position Slow Response Bank 1"

Probable Causes:

1. Sensor or solenoid faulty

2. Connector terminal contact is damaged or corroded

3. Wire harness - Check harness for correct voltage, open, short to ground

or short to voltage

4. Update control unit software - Check for the latest control unit update

5. Powertrain or Engine Control Module faulty

I have little use for software on phones as diagnostic tools; far too many times, I have had customers bring cars in that were supposedly throwing this or that code, only to find something entirely different when we get it into the shop and on our Durametric Pro system. The OBD software system that Porsche uses is far to sophisticated and specific for cheap generic diagnostic software on a phone to deal with, and even the people that make some of the best (and most expensive) OBDII diagnostics software for VW and Audi will tell you that Porsche's software is so unique that their stuff will not work on it.

As for figuring out if a PIWIS system is real or a knock off, that is going to be a problem. The only sure way would be to go to a Porsche dealer, theirs are all real ones. I have seen Asian knock off systems selling for less than $1000, when the real tool leases (it is never for sale) for in excess of $15,000 for the first year. You could also look for a independent that uses the Durametric software, about 85% as capable as the PIWIS, but one Hell of a lot cheaper; and even the Durametric software system can only be used on Porsche's, it is non functional on other makes.

Edited January 15, 2012 by JFP in PA

[Loren]

Found it (for DME 7.8.4 so hopefully this is the same)..

[swpender]

Loren, Thank you for the documentation. I'm guessing the price goes up as the fault causes are eliminated, starting at faulty Solenoid

Edited January 18, 2012 by swpender