The engine P0524 Code tells you about the car engine problem. You should check list of the engine code Fuel Temperature Sensor B Circuit Range or Performance, Cylinder 4 Contribution/Balance Fault and Ignition Coil A Primary or Secondary Circuit Malfunction. Cause of the engine problems are detached, dirty or fouled spark plugs are mutual reasons for engines that will not start. Spark plugs classically need to be replaced every season or 25 hours of use. You should also check that the spark plug gap is set correctly. If your stimulus plugs look good, problems with your explosion system can also averting a spark.