Similar, but not the same.
The LS/GS/RS engine harness will have:
Coolant Temp Sensor
Reverse light
VSS
O2 sensors (primary & secondary)
Alternator
Crank angle sensor
Distributor
IAT sensor
IACV
etc, etc, etc......
OVER THE LS/RS/GS....
The TypeR adds:
VTEC solenoid
VTEC pressure switch
Knock Sensor
Over the TypeR.....
The GSR adds:
IAB function
Of course, that is PROVIDED we are talking about the same year to same year engine harness.
I'm not sure what you're trying to do, but there's your answer.
Thanks Deth!!