No, fired right up and idled fine. SES is out, drive great as well. I know with the low voltage output, the PCM has a hard time with running the car and supplying a signal to fire the coil packs (not to mention the coil packs are running on low voltage as well).
Other than pissing tranny fluid since the lines have to be disconnected from the cooler to get the blower belt off, it was pretty straight-forward. Having a FMIC helps as well, it frees up a lot of room to work under there.