whats up guys, the other day I was sitting in traffic and all of a sudden my blazer shut off. it only cranks but no start. its a 02 had the fuel pump replaced about 6 yrs ago. so I got it towed home that night. had #1 misfire for years never got it fixed cause it still ran great. ok I turn the key on and here the fuel pump run, it will start if I only spray starting fluid down the throttle body then shuts off any help. thanks guys