ok so i got an msd rpm activation switch to activate vtec in my 90 si........but when i read the wiring diagram it says that both of the outputs are grounds, and vtec needs a 12v source.......so how do i get that to activate vtec? ive searched and keep reading about some relay, but i was never told to get a certain relay, is it just a relay on the car or what do i need? please help me asap cuz it sucks having a slow motor lol.....thanks!

 

12v aye ? what do u think out batteries are...

 

go to radio shack and buy an automotive relay.

if you do a search online for swapping vtec engines into your car, i am sure you can find instructions on how to wire it up.

 

i did you a favor and looked it up. go here and scroll down to the part about hooking up vtec. it has pictures and everything


http://crx.honda-perf.org/arti....html

 

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yes i realize that, but you dont want vtec all the time.....a ground doesnt help......i fixed it....thanks for the help!