If he's running a haltech on it he might want to look at tossing the coilpacks and running them external with leads. Matt, aka the
Hitman has a few SR20DET maps on his site which might give him some help getting the thing up and running, he's also mighty helpful over email. If he has any problems with the haltech install he might save a bit of hassle by contacting Haltech in sydney and asking to speak to jason.