ok guys i really dont wanna come off retarded but i wanna get all these problems fixed before i put a rag in my gas tank and set it on fire i bought a d16z6 swapped si hatch and rite now if i go 1/4 of the pedal down it excels fine but 1/2 or more it lags down and sometimes doesnt wanna move at all till like 3k rpms now they used the a6 wiring harness and just wired in all the ob1 plugs and **** now my head gasket is shot so i know thats half the problem of having no power rite now but minus that it dont smoke or nothing so rings are good o and it also has a surge idle and i put a brand new IACV on it and still nothing got no leaks or anthing like that now the coolant sensor behind the motor like by the vtec soilinoid is not plugged in nor does it have a plug wired in idk if that my main problem or what? someone please help me i love that car but its pissing me off!