does anyone know why my eco would backfire?  also i have had a on and off problem with my car dying at an idle, if anyone could help me with either problem i would appreciate it
ecopower
 
Extremely rich A/F ratio.  Bad timing.  Get a check engine light yet?
T3 Super 60 at 8 psi, FMIC, 2.5" charge pipes, HKS SSQV, Ford Racing UDP, MSD coil, SCT Xcal2, B&M shifter, S/R cluster (150mph), Eibach Sportline springs, 19mm RSB, ES bushing kit, Trubendz 2.5" stainless steel exhaust w/ resonator and Borla ProXS, custom LED brake light bar, Phantom Grip.
 
nope no light yet, it tends to backfire when i let off the gas in gear and i let the rpm's wind down
ecopower
 
Maybe you have a sticky injector.  Loads up with fuel.
T3 Super 60 at 8 psi, FMIC, 2.5" charge pipes, HKS SSQV, Ford Racing UDP, MSD coil, SCT Xcal2, B&M shifter, S/R cluster (150mph), Eibach Sportline springs, 19mm RSB, ES bushing kit, Trubendz 2.5" stainless steel exhaust w/ resonator and Borla ProXS, custom LED brake light bar, Phantom Grip.