NEED HELP PLEASE 91 2.6 MPV STALLING
 

91 MPV 2.6 START COLD RUNS GREAT FOR 5 MINUTES STARTS MISSING AND FARTING AROUND TOUCH THE THROTLE AND FALLS FLAT TRY TO RESTART AND AND TRYS BUT MISSFIRES AND POPS AND FARTS AGAIN HELD MY FOOT TO THE FLOOR IN DISGUST BECAUSE I JUST CHANGED THE FUEL PUMP AND COMPLETLEY BLEW THE MUFFLER OFF MY EARS ARE STILL RINGING ANY IDEAS GUYS COOLS DOWN AND WILL RUN AGAIN AND DO THE SAME THING ARRRG