So, I let the battery die on my MX4800. Left key in ACC mode by accident I guess. It’s a new battery. Charged it back up and put it back in. Starts fine, but just sputters along like in limp mode for a while until it dies. Throttle does nothing. I’m gettting a P0606 and P0380 code. Replaced air filter, fuel filter, checked connections at battery terminals, checked water separator, replaced fuel pump. Bypassed tank completely. Nothing works. I’m way out in the woods with limited ability to get it on a trailer…any other troubleshooting I can do???