Audi Repair: audi S4 quadro pro, crank sensor, quadro pro

Question
The car was running great until the valet parked it.  When I went to pick it up, the battery was dead so I used my battery booster to start it.  The battery turned but the car wouldn't start. I had it towed to a repair shop - they said it's the crank sensor.  It still won't start - seems like it's not getting any spark from the plugs. Am I locked out by the security system since the problem began when I decided to use the valet parking?

Answer
hi
I don't think there is any system that locked your car.
Why did they replace crank sensor? was there a fault in ECM? If there was a fault in ECM for crank sensor it is more like it from overcranking the engine. Make sure you have fuel presure at fuel rail. If not check power suplly to fuel pump. I have seen a lot fuel pump problems .
Good luck  PLTECH