Can a scanner or code reader be used on an engine that won't start? 2002 Mercury Cougar.
My 2002 Cougar 2.5 wont start.Its getting fuel and spark. Ive changed the crank and cam
sensors. A new fuel filter and checked fuses and wiring. To check if its jumped time,Is
there a diagnostic test performed on a car that wont start. Does a scanner work without the engine running?