I have a 91 integra b16a2 engine pr3 ecu, apexi vafc. If i go to hit vtec sometimes it will pop sometimes it wont, or i could go to 7000 and it will finally pop, and can pop back out at 7500, or not work at all. I think it might have to do with the solenoid(maybe sticking) I have a vtec led wired right to the solenoid wire, and it is getting power right at vtec crossover and works fine. I checked wiring, and it is getting oil pressure, no codes. HELP but i cant.