i have a hf crx with a y8 motor with a 1.5 distribuator y8 intake manifold hope this help to help me. and i replaced the fuel pump the spark plugs, the wires, cleaned the tps, changed the map, changed the cap and rotor too, and what it does is when it takes off normal it boggles at different kinds of rpms but lower than 3000, could it be the fuel filter thats the only thing is left that i am changing. if someone know what could it be pls add. thanks