the problem is if i stay pass 6000rpm more than 2 secs vtec shuts off and then give me an check engine light (code 22: vtec oil pressure switch) but when i restart the car the check engine light go away, first i thought it was a bad vtec solenoid and got that replace but i still have the problem. any help? thanks

VTEC is very dependent on proper oil flow and pressure in your system. You will want to make sure that your oil and oil filter and replaced early and often. Also, you may need to perform some VTEC troubleshooting procedures. This information is contained in the Helms manual.

check your oil level
and the vtec solenoid filter it could be cloged.