P0652 might be a very telling code in that list. I'm betting most of those codes on that list are for sensors that are sharing a common 5V circuit. Either there is a broken or damage wire/connector on one of those sensors or the driver for that circuit in the ECM is toast. Since this just happened right after an injector line was replaced, I'd be looking for a connector or wire that could have been bumped/pinched/damaged while replacing the #4 line.

Since the RP sensor is in the immediate general area of the #4 injector line AND is popping a code for being high AND low, I'm think that connector has an issue.