Hey I did a spark plug check because i am getting missfire or it feels like 1 or 2 of the pistons are getting no power or intermitten spark. so, I turned the motor on and it was running I pulled plug wire one and tested for spark it was getting spark but it was more orange then a bluish color but the motor was still going so i put that plug back in and then pulled number two and it died. how can i pull one and it still runs? then put that one back and pull number 2 and it dies? does this mean number isnt getting enough spark so its running iwthout one and when i pull two it's on getting 2 pistons or what? and whould this mean my ignition coil is broken? what color should the spark be? when it happend this is one was doen twoo the car i resealed the MAP Sensor or tried sealing it better would a map sensor mess it up and the inside of the engine area got spark by the sprinklers when i left the hood open over night

 

any ideas?