Went from missfire to rough idle and engin dies?

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The problem started out with the following errors! 1. crankshaft position sensor fault, 2. misfire detected cylinders 1 and 3, and 3. general check plugs & wires. Check was done at auto parts store so i know they are not the best readers to go by. Replaced Crank sensor, wires and plugs. New error was only misfire detected cylinder #3 and a strong smell of gas in exhaust. Removed coil pack noticed several cracks and thus replaced. No longer have misfire issues but now engine idles rough until it stalls within 15sec to 2 min. Error codes now are P2197 lack of heated 02 sensor indicates lean condition bank 2 sensor 1, P21945 lack of heated 02 sensor indicates lean condition bank 1 sensor 1, P0106(Man. absolute pressure)/BARO or MAF (Mass Air Flow) / VAF (Vane Air Flow) sensor condition, and P0102 (Man. absolute pressure)/BARO or MAF (Mass Air Flow) / VAF (Vane Air Flow) sensor condition. Also still strong gas smell in exhaust, any clues as to what is going on and how the ignition system messed with this?