Ok so he's the deal, we pulled the engine to replace the clutch and clean it and the engine bay put it back in and it wont start. We check to see if it's getting fuel and it is check to see if its getting spark it is. It will turn over then back fire so we figured timing and checked it, its 180 off so we fix that and crank it again and it turns over for awhile and backfires we check it its 180 off again? so we repeated that a few times and it kept ending up 180 off. yes we making sure its at tdc. it started to rain so we called it quits, today i got back on it, made sure it was in time and cranked it a few times nothing and the bat started to die, so i check timing and its good went and got the charger and remembered i forgot to turn on the fuel pump(its on a switch) so i hook up the starter and turn the pump on and it back fires i check the timing and its 180 out again?

Im pretty lost at this point. its also throwing code 11 crank angle sensor and code 21 ignition signal circuit.