I got the engine code P2647 on my 2006 Honda Civic SI

Question

2006 Honda Civic SI won't pass 4k RPMs. I have replaced the vtec oil pressure switch and have replaced the vtec solenoid

Answer 1

P2647 Rocker arm oil pressure switch circuit high voltage

Circuit high mean there is no connection or contact with the switch , check the harness connection to the switch for any opens.This code is a connection problem

Answer 2

P2647 Honda Code - Rocker Arm Oil Pressure Switch Circuit High Voltage
Read more: https://www.autocodes.com/p2647_honda.html