1. get a pressure gauge on the front port of the head to see if you're getting the correct pressure.
2. jump the vtec solinoid w/ the batt and see if it clicks.
3. while the car is idling, jump the vtec solinoid w/ the batt...you should notice a definate difference in the tone of the engine and it may cause it to stall.
4. pull solinoid off and check to see if the screen is clogged.