well this is kinda a noob quesiton, but i just got my b20/vtec put in. but it seems like the vtec isnt hitting, i have no check engline lights, i just have my ABS lights on. i have a p28 ecu skunked. i usually wait for my car to warm up, but never felt the vtec kick in really. do you guys know whether or not if it matters with the ABS sensor? cause i dont have a ABS axles on even tho my integra has abs. thanks

 

try another ecu,i bought a chipped ecu from ebay and never heard the vtec engage.i put back a stock one and there was vtec engaging.

 

Make sure you have enough oil in your motor. if your oil pressure is low, the pressure switch won't work. Check continuity from the wires going to your vtec solonoid too.