Couple days ago I was idling at a traffic signal and it just cut off! Turned AC and radio off and tried again and it started right up. Thought it might be a bad crankshaft sensor by the symptom. This morning I replaced the camshaft and crankshaft sensors using #8 Torx star socket. This afternoon I got gas and tried starting but did nothing except had dash lights. Second try and it started right up! Don't know where to go from here. If I can get one of the two OBD readers working on my Android I'll pull some codes. It pairs with my phone but won't do anything.