LS VTEC...so he would use the VTEC on the OBD2 EX wiring harness. If he isn't using a OBD2 harness...and a OBD2 motor....he has lots of problems to figure out. He might be jumping the harness in the kick panel to run an OBD1 chipped ECU and be running all OBD2 under the hood....at least that's that I'd do and head straight to the tuner.