Audi

It was in montana, started fine, then after being towed to minnesota it no longer starts. it was towed with the front tires off the ground behind a u-haul. it was also towed in below freezing temps but has since been warmed up in a heated garage to over 75 degrees. any suggestions are greatly appreciated. btw, the engine sounds like it should be starting and the battery is nice and it has gas.

Do this. locate the fuel injectors, and you will see a rail that they are all connected , there is a bicycle valve tire looking thing at the end. get a rag and hold it against it, take a nail and lightly press in the metal valve. if no gas shoots out, you dont have fuel pressure.the tow more then likely agitated the crap in the bottom of the fuel tank, and it is stuck in the pump.or, it could be that you have a clogged fuel filter.so check these things first.