ok so i just got done swapping a gsr set up into my car, got everything running good, but now run into the fact that my vtec does not crack, does not engage at all. i thought there was something wrong with my ecu so i plugged it into my friends car and it worked fine, then i tested to see if my vtec selenoid worked and it also did. so my final conclusion is that i need a "knock sensor" and have no idea where i can get one for cheap. and also does it matter that i have it obd1?

 

what kind of ecu are u running and yes u do need a knock sensor, without it. vtec wont pop. u can find it from ebay. local junk yards..ect or u can even try to bypass it.

 

i am running the stock p72
how much will the knock sensor go for?
kinda low on cash

 

Junk yard it.. But its going to be a pain in the *** to get out. And don't tell them you want that part, cause they most likely wont sell it to you.

-Jason