[AJxtcman]

Engine Torque Reduction Tables
These are the tables inside of the PCM's program!

IAT:
Yeah The Intake Air Temp sensor will reduce torque on a Northstar. It will revamp timing and shift speeds. When it is cold out lets just say 30° out and you get that Ice possible message on your DIC. Nail the gas and at 30 MPH, it will only drop into 2nd. If it is 50° out you will get it into 1st gear. If the temp is 90° out the PCM is trying to protect the trans and it reduces more timing on shifts. If the car is hot under the hood say 160° you would get detonation so they pull out timing. If you get some cold air going in to it the PCM will add some back without getting detonation.

IAT Spark Correction vs IAT vs MAP:
This is one of the tables used for above

Brake Torque Control:
This will reduce timing, reduce injector pulse, and shut down injectors

AC Clutch Engagement and Release:
This will reduce or increase timing, reduce or increase injector pulse, and reduce or increase IAC counts

TCC Engagement and Release:
This will reduce or increase timing

DTC Torque Reduction:
This can reduce timing, reduce or increase injector pulse, and shut down injectors depending on the DTC set

TCS

Traction Control Spark Retard vs RPM:
This table is the setting for the amount of spark retard at a RPM when the T/C is active.

Traction Control Spark Retard vs Desired % Torque Reduction:
This is the factor table for the desired amount of reduction.

Traction Control Aggressive Spark Retard vs RPM:
Think of this as when your on ice.

% Torque Loss vs Spark Retard:
This table is the reverse of the other table and tells the PCM how much torque is lost for a given amount of spark retard.

% Torque Reduction When Traction Control Disabled:
This is the table for the % reduced when a DTC is set, the T/C is off, no SOH message received, and the PCM receives a message stating that the T/C can not control traction.

Desired Torque Failure Limit:
Number of invalid desired torque reads out of Desired Torque Pass Limit reads which will set a fault.

Desired Torque Pass Limit:
Number of desired torque reads which will set a pass if Desired Torque Failure Limit invalid reads have not been reached.

Traction Control Re-enable Time:
This is the amount of delay before the system return to normal.
When I test have test driven some early CTS’s that have a very long delay. Like I can count 2 thousands before the PCM returns the power.

Engine Protection:

Low Engine Oil Pressure:
This will shut off all the injectors and or the Fuel Pump

Camel hump Mode AKA Over Temp:
Shut off cylinders to cool the engine

Over RPM:
This will reduce timing, reduce injector pulse, and shut down injectors

Misfire Balance Timing offset:
Adjusts the timing to prevent damage from internal torsional stress when the engine is misfiring.

Vehicle Protection

Vehicle Over Speed:
Shuts off injectors

Extended Brake Pedal Travel:
This will reduce timing, reduce injector pulse, and shut down injectors

Wheel Speed Sensor Failure:
This can reduce timing, reduce injector pulse, and shut down injectors depending on the system and the VSS

Catalytic Converter Protection

Misfire Detection:
This will reduce timing, reduce injector pulse

Catalytic Converter Over Temp
This will reduce timing and Vehicle Speed (Shuts off injectors), Change Stoich to stabilize converter temp

The 4T80E has a full set of Torque Management Tables also.

Drivetrain Abuse Management
This will reduce timing, reduce injector pulse, and shut down injectors
Examples: Neutral drops, Over Speed Governor, Trans Slip

Garage Shifts:
Reduces Trans Line Pressure via the trans PCS

Trans Upshift and Downshift Torque Reduction:
Trans PCS change, Shift Timing, Ignition Timing Reduction.