what would cause no fire at all? on 2003 Chrysler PT Cruiser

was driving down the interstate, when car spuddered twice and died. now it has no fire at all to the spark plugs and i have changed the oil pressure switch. there are no codes showing now. does anyone have a idea of what it could be......?????? need answer asap!!!! :(

It could be many things, unfortunately and without experiencing the problem first hand or being able to do some basic diagnostic tests its hard to say. There is a company that independent auto repair shops get their information from, this same information is available inexpensively for people that work on their own cars.. The information is year make and model specific, covering repair procedures, torque specifications, fluid capacities and specifications, service bulletins, component locations, wiring diagrams ect.... Alldata is very easy to navigate
Do you have fuel delivery, fuel pressure? Can you hear the fuel injectors click when the engine is being cranked? Could it be more serious, broken timing belt?