i did a manual coversion on my sol (d16z6) then i bought a chiped ecu cars been running fine but it seems like between 3500 and 5000 r's its got no balls then when it hits vtec it rips and i know its not sapose to do that it should be smooth so is it the chip or should i be looking at other stuff??? its not the plugs wires cap or rotor all a month old.