[Swhitcomb]

Out of nowhere today on my way to work, my car started miss firing and died. I limped it back home. Running really bad. Sounding like an air cooled VW bad. I pulled the codes and it's P0343. Also miss firing on all cylinders. I'm reading that it could be as simple as a faulty electrical connection. Please tell me that the IMS couldn't cause such a fault. Where do I begin in diagnosing it. I don't even know where to find it.