Turbo Backfiring

[bryanf89]

i dont exactly know what you mean when you say "what is the boost?" its a ct-26 if that answers it and yes its overboosting for the stock setup.

im re-inspect the electrical and couplers, the only coupler i touched was that one on the turbo and that was still new as with all the other couplers that i replaced. What basic diagnostic tools should i be looking for?

No, i didnt touch the AFM.

i should also mention that the voltage test i ran on the batter stood at an averge of 13.9 on idle and 15V under engine load...when the car is running, the lights and anything electrical work just fine, but if i store my car for a bout a week, the battery would be dead.