Originally Posted by 2xLS1

Torque management is a function of the PCM that reduces engine power
under certain conditions. Torque Management is performed for the
following reasons:
To prevent overstressing the power train components.
To prevent damage to the vehicle during certain abusive maneuvers.
To reduce engine speed when the IAC is out of the normal operating
range.

The PCM monitors the following sensors and engine parameters to
calculate engine output torque:
Air/Fuel ratio
Mass Air Flow
Manifold Absolute Pressure
Intake Air Temperature
Spark Advance
Engine Speed
Engine Coolant Temperature
A/C Clutch Status

The PCM monitors the torque converter status, the transmission gear
ratio, and the engine speed in order to determine if torque reduction
is required. The PCM retards the spark as appropriate to reduce
engine torque if torque reduction is required. The PCM also shuts
off the fuel to certain injectors to reduce the engine power in the
case of an abusive maneuver.

The following are instances when engine power reduction is likely to
be experienced:
During transmission upshifts and downshifts.
Heavy acceleration from a standing start.
The IAC is out of the normal operating range.
When the driver is performing harsh or abusive maneuvers such as
shifting into gear at high throttle angles or shifting the
transmission from reverse to drive to create a rocking motion.

The driver is unlikely to notice the torque management actions in the
first two instances. The engine power output will be moderate at
full throttle in the other two cases.

The PCM calculates the amount of spark retard necessary to reduce
engine power by the desired amount. The PCM disables the fuel
injectors for cylinders 1, 4, 6, and 7 in the case of an abusive
maneuver.

Originally Posted by GOaT Cheese

In what form specifically? It is not simply retarding the timing during upshifts, that is just the computer anticipating a transitional spark knock. I had always understood that the full blown active torque management system used in the GTO and Corvette was introduced in '04, No? I am completely aware of the ASR and TCS systems, but both of those can be turned off by the driver, while the current torque management that I am asking about is burried deep within the ECU.

Originally Posted by GOaT Cheese

I know exactly what torque management is, my question was if it was used prior to '04 in its current form. Because I am only familiar with the TCS and ASR systems being used before '04.