i have a b20 in a EF. i have seen someone on here with the same problems as myselfe. first thing is i bought the motor from HMO online 30xxx miles. i put the motor in my car and now it only revs 2 like 3,500. i have no clue why it does this, i have quad.checked the wires on crank angle sensor. i have checked every wire on the ECU and every wire on the entire motor for that matter....i just need some help....sounds like a rev limiter set at 3,500 RPM...