Hello, I have a 2012 ram 1500 with a 5.7. It is giving me a P0300 and a P0305 code. The engine light used to come on randomly every once in a while and would go off shortly after. Then my starter died and I had it replaced, that's when the check engine light came on and is now staying on. It's giving me codes P0300 and P0305. The engine runs a little rough and seems like it takes forever to get up to speed. The check engine light also flashes when I accelerate hard. I replaced the spark plugs within the last 18 months or so and I replaced the cylinder 5 coil pack. I'm not sure where to go now.
The check engine light also flashes when I accelerate hard.
It's flashing to get your attention, because you ignored it too long. Now it's saying "STOP DRIVING NOW! You're damaging me"
See our FAQ for diagnosing misfire.
Well pray you got a cheaply made coil pack for that number five because if it's not that then you either have a bad fuel injector for that cylinder or you're getting some type of leak like an intake manifold gasket leak or the head gasket starting to blow in number five or you have a computer or wiring problem feeding the coil or the fuel injector. Soap another ignition coil with that and if the mess moves then you know it's just a coil
Thank you! I will give that a try.