Ended up being the Yellow and Red wire going into the connector on the IPR that had worked itself out of the connector. After a LOT of work and more parts than I care to recall we finally got it worked out.

Was throwing code 1283.

Additionally this made the buzz test throw 1271, 1273, 1275, 1277, 1293, and 1294.

Just thought I'd throw that out for people searching in the future.