Okay, just did a swap on a 97 civic with a OBD1 B16. I still have intermittent vtec. The motor is reaching temp and not throwing any codes. The car vtecs sometimes through three gears and then not the next at all. I metered wiring from the solenoid and the pressure switch to the ECU and meters perfect from pin to sensor. I replaced the thermostat because it was stuck open, still no steady vtec. Any suggestions? Thanks.