so i installed the d16y8 manifold in my crx, the y8 that i picked up had an lx manifold on it, im pretty sure i hooked everything up right, theres no loose vacuum or fuel lines, but when i start the car it jumps to 3500 rpm and climbs to 4000, i thought there was a problem with the sensors, but it does the same thing when i put the lx back on. this is boggling my mind, i figured it would be a sensor issue or some ****, but it does the same thing with both manifolds. any suggestions??

 

might have a bad throttle cable or needs adjustments