Cyl #3 Misfire

Question

Had 4 cylinders misfiring. And Bank 1 sensor 1 and 2 were faulty. Replaced sensors, plugs and wires since this vehicle has a single fire ignitio #3 cyl plug fires off of #4 cyl coil and #3 cyl is still misfiring, Code 303, can just the part of the coil that feeds Cyl#3 be bad but still fire #4 cyl.Everthing else is resolved but #3 cyl. Maybe a bad injector??? I don't want to replace both the injector and coil if only one is bad.HELP!!!!

Answer 1

Check if there is spark at the coil, if there is, then the problem is the injector. Had 3 GS300 at the shop with the same problem, one was the coil and the other two the injector. You could also try swaping the coil to check if the mifire follows the coil.