[garyinri]

Hi all,

I'm looking for a little guidance on the fault codes I am pulling on Durametric and 2 issues I have that i can't find any info on...

A little background first. Bought this car in December, currently has about 38,000 miles on it. I had a shop put on new tires. I have changed the oil + filter, flushed and replaced the coolant, replaced 1 O2 sensor, and done the necessary dash reconfiguration to add a PCCM+. There have been other small jobs, but nothing electronic or power train related. I ordered the Durametric when I was getting an O2 sensor voltage fault (pre-cat bank 1). That doesn't seem to be an issue any longer having replaced the O2 sensor.

Known issues 1 and 2:
1 - the PCCM+ will 'go black' and need the power button hit to come back on. The whole thing goes silent but doesn't power-down (there is no boot-up time, from a cold start that system takes a while t come back on). It's like a stand-by mode. This happens at seemingly random intervals while driving.

2- I do have some issues with the A/C not wanting to blow cold. Sometimes it does sometimes it doesn't. Testing the coolant shows that is full. I am getting A/C fault codes.

On to the Durametric results...

Bosch Digital Motor Electronics Motronic 7.8
P0455: Porsche fault code 94 - Tank vent system (major leak) -I am going to replace the gas cap. I got a CEL and thought I just had a loose cap, tightened, cleared with a regular scanner... So now I will replace that.

Instrument Cluster K21 Current Fault Codes
9102: CAN comfort bus
9114: PCM control unit
9115: Air conditioning control unit

Airbag B05 Current Fault Codes
3: Supply voltage

Automatic Air Conditioning H01 Current Fault Codes
34: CAN bus off fault
36: Instr. cluster CAN timeout fault
38: PCM CAN timeout fault

So basically, I am trying to figure out what to do with this information... I don't know if my A/C or radio issues are related or not. I don't know if I need to replace the a/c control unit... I'm just lost. I'd rather not go buying parts I don't need and I'm willing to chase thing if I at least know where to start looking.

Any info on the 2 known issues and on these fault codes would be greatly appreciated.