We just did B18C1 Swap in our delsol and everything went well. We got the car running but for some strange reason as soon as we start the car it revs at 4k and stays there. I have not done any wiring; just connect all the plugs but I was told the car should run fine without messing with any of the Vtech wiring. Anyone knows what we should check next, any help is appreciated!! By the way, engine light is not on !