yes there is. The proper way to do this would be to remove the check for Vtec pressure from the code. This is not beginner territory, however.
There is a discussion about this over on the PGMFI.ORG site right now... Development/OBD1 forum. The discussion centers around activating vtec without the 25mph speed requirement, but would apply equally to your situation.
At a minimum, you are looking at a chipped ECU with custom program.
The *easy* way of doing this would be to add a wire from the Vtec pressure pin on the ECU (look it up - I don't remember off top of my head) to ground. This will effectively fool the ECU into thinking it always has vtec pressure.