dead knock sensor would have no effect, it would just prevent your timing from retarding if you were knocking. O2 sensor is fine. There are 2 sensors for temp, coolant and temperature(gauge), you want coolant, i can post part # later tonight. Fuel filter, Z201 or i use a larger 300zx one Z202, larger and cheaper. Fuel filter wont be your prob though, but good to change it if you havnt already.
Prob leave injectors until later if ever if it is temperature related, more likely to be coils or plugs with consideration to coolant sensor, AFM if that doesnt work.