I have a 2010 Ford Taurus SEL that just won’t stop misfiring. Yes I’ve changed all the coils and spark plugs multiple times at that, And each time I had a code come up from the check engine light, I fixed the part of whatever the scanner was reading and so on, Ive Done evrything I could to fix this issue but it still keeps happening. I’m starting to think maybe fuel injector is bad, maybe even the fuel canister, maybe bad solenoid, all I know is I keep spending way too much money on this thing just to keep fixing things don’t need to be fixed to begin with. I even got a new computer installed just to be safe in hopes it was probably just sending out faulty codes, but nada. Didn’t help. Any advice or help on how I can diagnose the issue without spending another pretty penny for no reason ?