Maybe this will clear things up:
The resistor on the passenger side is for the fuel pump, basically allowing the ecu to lower the fuel pressure at idle.
The resistor on the drivers side for a 7m-gte is for the fuel injectors, because the ecu can only handle low impedance fuel injectors with a resistor. The stock injectors on a 7m-gte are low impedance.
The 1jz has high impedance fuel injectors, so it does not need any resistor, and there is no connector for it at all. When you do a 1jz swap the 7m-gte injector resistor is eliminated.
If you install high impedance injectors on a 7m-gte, you must unplug the injector resistor and jumper all 4 wires together in the connector, in order to bypass the resistor.
If you use low impedance injectors on your 1jz, you must hardwire in a resistor by splicing into the stock 1jz harness.