VEH CAME IN FOR MIL ON. CODE P0301 SET. CYL #1 COIL HAD NO OUTPUT (COIL ON PLUG). COIL WAS REPLACED AND TESTED ON CAR AND SPARK IS UNIFORM WHEN TESTED. THE PROBLEM IS THE ENGINE STILL HAS A MISFIRE ON #1. THE FUEL INJECTOR WAS WITHIN 2 PSI OF THE REST FOR PRES... Login to read more.