I have a 1997 Ford Taurus G. My CEL had been on because the gas cap was loose. Today my car was hard to start and hesitant while driving then the CEL started blinking. Got it home (I was very close) and ran codes. P0455, P0301, P0303 are what I got. So the first is because of my shady gas cap. The next 2 are misfired. In other forums I've seen that I should replace spark plugs and wires or else the coil.
Is there any way to tell which one it could be? Do I just start with the wires and plugs and hope that works?
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