multiple mis-fire problem

Discussion in '2.3L (N/A & Turbo) Tech' started by 91stangBoiLX, Apr 28, 2012.

  1. I have a 91 mustang lx an the check engine light is on I plugged it in an it comes up multiple mis-fire so I replaced plugs,wires,coils at its still mis-firing wat else can I do to fix the problem any suggestions please let me know