First off it is vtec, not v-tech.
A vtec controller allows you to set the vtec transition point anywhere from 2000 to 8500 rpms with 100 rpm resolution.
It also allows you to adjust your fuel delivery + or _ 30% with resolution at 1000 rpm increments from 1000-8000 rpms.
It confuses map signals being sent to the ECU and which causes the computer to add or subtract fuel according to what your controller settings are.
A vtec controller allows you to set the vtec transition point anywhere from 2000 to 8500 rpms with 100 rpm resolution.
It also allows you to adjust your fuel delivery + or _ 30% with resolution at 1000 rpm increments from 1000-8000 rpms.
It confuses map signals being sent to the ECU and which causes the computer to add or subtract fuel according to what your controller settings are.
