Had a misfire on cylinder 4 originally. So i did all the wires spark plugs and the 3 coil packs. Now im getting a p0300 code which is random multiple misfire. I am really low on options here i tried my best to do it without any guidance but i dont know what to do anyone who has some advice woukd be great. And no i didnt mix up the wires. Im going to grab some carb cleaner and see if its a vacuum leak.
Thanks for your time.