what up guys!!! got a bit of a problem.. i just got a 94 civic cx. 5spd. the motor was swapped with a d16z6 and is running on a PR4 ecu.(v-tec was on switch but i removed it) and it doesnt seem to run right.. at start it high revs @ 2000rpm. and as it warms up it lowers down but not just to 1000 more like 500( or bearly running) and when i step on the cluch i loose about 500rpms, then regain 500 after i let off the clutch.. also in my brakes, i changed the front pads, rear shoes and rear wheel cylinders, bleed the lines and my pedal still looses pressure and after holding the brake for a sec.. the pedal hits the floor, n the sec. i ease off im rollin back lol.. oh and with all these problems theres still NO check engine light..... unfortunately i just got this car not too long ago so i really dont know everything about it.. if u need me to ID any part i will/try all help is appreciated!! thanks!