car troubled

A mechanical engineer, an electrical engineer and a software engineer are travelling in an old Fiat 500 when all of the sudden the car backfires and comes to a halt.

The mechanical engineer says "Ah! It's probably a problem with the valves, or the piston!".

The electrical engineer says "Nonsense! It's most probably a problem with the spark plugs or the battery!".

The software engineer says "How about we all get out of the car, and get back in again, It might work...".