Do not waste your time looking for other things that might not even exist until you replace that hose. On every engine that uses a mass air flow sensor, which is almost all cars other than Chrysler products, you cannot have any air sneaking into the engine that does not go through that sensor. That includes loose hose clamps, cracks in the fresh air tube, or vacuum leaks, like that PCV hose is causing. When air sneaks in that does not go through the mass airflow sensor, it does not get measured, and the fuel to go with it is not included in the fuel metering calculations. That can cause anything from a mysterious diagnostic fault code for "running too lean" on a good-running engine, to stumbling on acceleration, to a crank / no-start.
For the no-spark issue, start by having the diagnostic fault codes read and recorded. If we are lucky, there will be one to indicate the circuit that needs to be diagnosed. The people at many auto parts stores will do that for you for free.
Monday, December 5th, 2016 AT 10:16 PM