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P0341 Camshaft Position Sensor problem/Misfire


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Hello everyone,

 

I am new to this forum and to Porsche ownership in general.  My 2005 Cayenne Turbo has a misfire and a few codes, but I would suspect the code P0341 is the root cause (Durametric says the other codes are "not displaying a CEL".  P0341 is for a bas signal from the Bank 1 camshaft position sensor.  I replaced it, and there was no change.  The Durametric shows a signal coming from the bank 2 sensor, but for bank 1 is just shows "---".  I don't know where to go from here.

 

The car has a rough idle, stumbles off the line, but anything over 2500 rpm it pulls just fine, makes boost, etc.  It also cruises very well at any speed once moving.

 

Let me know what you guys think.  Otherwise, itll be going to the dealer.  This is the last issue preventing the car from being perfect, as I have done all other work/maintenance the car needs.

 

-Will

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Welcome to RennTech:welcomeani:

Your code indicates a signal problem, not necessarily a bad sensor.  More likely, you have a loose or corroded connector in the circuitry, or a bad wire somewhere in the system.  You are going to need to do some circuit diagnostic (continuity, voltage, voltage drop, etc.) to find the problem.

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Just now, JFP in PA said:

Welcome to RennTech:welcomeani:

Your code indicates a signal problem, not necessarily a bad sensor.  More likely, you have a loose or corroded connector in the circuitry, or a bad wire somewhere in the system.  You are going to need to do some circuit diagnostic (continuity, voltage, voltage drop, etc.) to find the problem.

 

Thanks!  That is my next step...any hints on where I should look, etc?  I don't have a wiring diagram/pinout so I would just be shooting in the dark.

 

-Will

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2 hours ago, CayenneTT955 said:

 

Thanks!  That is my next step...any hints on where I should look, etc?  I don't have a wiring diagram/pinout so I would just be shooting in the dark.

 

-Will

 

That maybe your only choice as Porsche never published that wiring diagram, it was only available on their PIWIS system.

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22 hours ago, JFP in PA said:

 

That maybe your only choice as Porsche never published that wiring diagram, it was only available on their PIWIS system.

 

****...good to know though.  I actually brought it to the dealer today.  Reason is because there is effectively nothing else I can do at this point.  I put my meter on the three terminals within the CPS plug and each bank reads correctly: 12 volt, good ground and 5 volt are all present.  Past a blatant wiring problem, I am at the limits of what I am able to do.  I will post back with what Porsche says.

 

I did correct the vacuum leak at the vacuum pump, the brakes work better and the engine runs even smoother.

 

-Will

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