Aight yall. so i got this 03 and the engine was throwing a random multiple misfire code and then i found out the rods were gone. PO ran it without oil so the motor was trash. i got another lower mileage DE and swapped it in, but its still throwing the random multiple misfire. it has new plugs and coils so im wondering if perhaps it could be a fuel issue? normally a random multiple misfire can be caused by a fuel issue. should i start by just replacing the pump and filter assembly? what else could i check? only reason i feel its a fuel issue is because the same problem has persisted between two engines