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4.6 mustang won't start

  1. 1998 4.6 gt mustang won't start HELP!

    4.6L Tech
    i got a 98 mustang gt with a 4.6 was running fine just idled high all the time,i had the hood up and i disconnected the connection on the iac valve and it idled down then it won't start at's getting plenty of fuel i checked the fuel rail and its getting great was running...