any1 ever change out a vtec solenoid or vtec pressure switch? any tips for me? honda dealer sold me what they called a spool valve, and said the part had BOTH the vtec solenoid and the vtec oil pressure switch 2gther. is that right, that both parts can be located on this same spool valve? and is the vtec pressure switch aka the vtec "OIL" pressure switch this guy said. my friend who is very knowledgable is going to do the job for me... he's done engine swaps, FI installs, etc. ive used him b4 to change out my rotors, brake pads, sway bar/endlink install, helix throttle body spacer, catalytic converter install, header installation etc.

btw, i have a 1998 honda accord coupe 4 cylinder EX