Good info. I wondered why my tuner didn't adjust VTEC and I'm probably losing a lot of mid-range power. How hard is it going to be to splice in the connection? I might need to have this done soon.

 

This im not sure of, however, the attempt at splicing in my car has failed and Vtec still kicks in at the normal time, with occasional CEL when trying to vtech creeping up in partial throttle

 

The tuner did mention possible CEL issues with the F/IC and changing VTEC engagement points. Not to hijack the thread, but does anyone know if the Boomslang harness for the Emanage Ultimate has this same problem?

 

Any update?