ok i just put in a zc motor in a friends dx crx. the only code its throwing is the 4 short flashes, which is the crank angle sensor. i already tried crossing the 2 wires over, reseting the ecu both times. i also switched out the sensor and put in one that i know was good. the problem is that when you step on the gas, it bogs reving up and it wont let me past 4,000 rpms. and input would be greatly appreciated