Own a 2000 Prelude, swapped a 95 H22a, swapped oil pump to get the crank sensor so car would start. Car is hard to start, after firing, check engine light comes on. Code 4 stored in ecu. Used the factory manual for wiring tests and tested all wires, computer, and replaced the crank sensor and retested, all are good! No change, car is in failsafe, will not accelerate over 3,700 rpm at idle or ANY gear, occasionally dies when coming to a stop. ANYONE have any ideas?? Apparently the signal is not being sent to the ecu, but with no faulty wires or sensors, I do not know where to go from here! HELP!!!!!