Loss of Power

I have a 94 civic cx with a 96 JDM B16A with a P30 ECU out of a 95 delsol. When you get on it the motor loses all of its power around 6800 rpms. It does good until it reaches 6800, but its almost like the fuel shuts off. You still accelerate but very slowly. The only thing that i lack is wiring the four wire o2 sensor and i should have everthing connected. Could the o2 sensor be causing this to happen or could it be my fuel pump, injectors, fuel rail, etc...?

Nobody knows? :eek:

the missing O2 sensor might be making the car run too rich which explains the power loss.. get that O2 sensor installed and get back to us...

Could the o2 sensor be causing this to happen
um, yes.

I have a 94 civic cx with a 96 JDM B16A with a P30 ECU out of a 95 delsol. When you get on it the motor loses all of its power around 6800 rpms. It does good until it reaches 6800, but its almost like the fuel shuts off. You still accelerate but very slowly. The only thing that i lack is wiring the four wire o2 sensor and i should have everthing connected. Could the o2 sensor be causing this to happen or could it be my fuel pump, injectors, fuel rail, etc...?
your vtec is partially controlled by several other sensors but no the o2 sensor shouldnt make it do that i changed my exhaust and havent even hooked my o2 sensors back up. no problems

Knock sensor hooked up?