Hi, i need help.

Bought my car with the apexi vtec controller. Got an electrician to remove it - needed the cash.
anyways, when he removed it, he didnt default the settings. now vtec kicks in at 4500rpm.

apexi's sold.

how can i change it back to default settings.
can i reset ecu?
or
appointment with honda and their scan tool?

help much appreciated.
thanks