I don't know what's up one day it's running fine but with a very low idle the next day I am backfiring and everything if the timing is fine then what else could be wrong any sensors??? Please Help!!!!!!!!

 

Check ur MAP sensor, a stuck MAP can create a lean situation causing backfires. That's just one of the more simple things tho.

 

figured this part out. when I unplugged the map sensor it caused the car to run real rich I think which caused me to backfire I took the plugs out and they were blacker than black so I cleaned them up put them back in and now it runs fine but still have a low idle problem. Thanks