dustin2292

I have a 2009 Audi a4 cabriolet quattro with a 2.0 turbo. Very rarely, like only twice in 5 months the car will try to spin over but wont crank, when it finally does crank it is running rough with the check engine and drive by wire light come on. when this happens the car sets various codes most dealing with short circuit or open circuit. codes are as follows:

01092 evap emiss system purge control valve circ.,open
00051 turbo charger bypass valve control circuit
00579 turbo waste gate solenoid A
05491 left electro hydraulic engine mount solenoid valve open circuit
05495 right electro hydraulic engine mount solenoid valve open circuit
09216 evap system leak detection pump circuit/open
08853 fuel pressure regulator 2 control circuit low
00048 02 sensor heater contr. circ.bank1 sensor1

Has anyone else encountered similar problems? this usually happens after sitting for several days or a week. cycling the ignition gets the car back to running fine and after clearing codes the car wont miss a beat for a good while. The dealership started talking about replacing all of those components but it is my feeling this is an electrical issue, a harness, a computer.... something that makes it throw these codes at once after being hard to start. any input is much appreciated!