Turns over but won’t start and has small evap leak

Hello, typically, an evaporative emission system vapor leak will not prevent the vehicle from starting. It may cause a check engine light -- but many things can cause a check engine light to illuminate. Testing will be needed for the light -- but the light may not at all have anything to do with why the vehicle will not start. Still, it's good to start with what you can verify - such as what data is available from historical events captured. Fuel pressure and delivery, ignition spark proper air intake, engine timing and engine compression are things you'll want to check out. www.repairpal.com/repair-shops