Bought a 92 hatch with a B18c hmo motor swap in it. There is a buzzish noise when it hits the vtech crossover points up or down in or out of vtech. I unplugged the solenoid and It goes away. I replaced the solenoid with a one I knew was good and it still does it just not as loudly now. The noise is only present for just a second. Now I’m scared to drive past 4500rpm. Anyone have a clue? Or have had similar issues?
pls help!