I have a 2001 Porsche 911 that I bought in Ohio. I live in Texas. How can I find a PCM 1 Disk to update the navigation system for Texas and surrounding states?
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Probably Nox too high. Can also be engine too hot. Last time cooling system serviced? Also can be carbon in the combustion chamber ignites fuel too soon. Fuel delivery system and all sensors may be a problem. Bad or corroded connections can contribute to bad behavior of the ECU.
If no sim card is working in the audio unit it is more than likely an audio unit fault but to be 100% sure it needs to go on a Porsche diagnostic machine and read out faults. This is because the audio unit is a module called PCM which controls all the entertainment systems on that vehicle. Also the aerial need to be check but can also be done at the same time
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