I brought my 2007 Mazda6i up to the gas station. Started and ran fine. Got out, got back in and it wouldnt start. Engine is cranking but no start. I'm getting fuel to the engine, no corruptions in air flow, but I'm getting ZERO spark. I pulled the plugs, connected to the coils and tried turning it, and didnt see ANY spark from all 4 plugs. I've replaced the crank positioning sensor and it did nothing. It is so puzzling, any thoughts? Thanks in advance

 

Code check?