I was not aware that high impedance (read saturated) injectors could be run off a resistor pack.

Anyhow, he was missing injector clips to boot, so cyl 4 was getting an intermittent pulse signal if that. So on occasion, it's safe to say he was running on three cylinders. I pulled the harness and it really isn't that bad, the harness is factory wired to the resistor pack. There were a few crimped connections for various block sensors which were soldered. Everything seems to be running without an issue at this point. SEEMS, lol.

He's ready in my opinion to go ahead with Hondata at this point. He'll need slightly larger injectors in the near future anyway, so it is my opinion that he should either commit to low impedance or swap the harness. That's his call, hondata works either way.