Hondata

Alright so I've had this problem on and off and cant figure it out. Sometimes my O2 will show A/f for a little bit then it will just quit. Ive tried several different O2s all of them the right denso's. Im figuring that it is that its not getting a good connection but ive cleaned the connectors several times and it would work for a bit sometimes then stop after a minute. Any ideas of what i should trying.
Im using the Hybrid racing conversion harness.

Try the ECU in a known workgin car. If the problem does not come back, you know it is in the wiring if the vehicle and will have to correct the wiring fault that is causing it.