Originally Posted by jwikoff99
Will TC make the engine shudder, though? I don't have experience with TC, but that sounded kinda like a mis-fire.
Yes, and its a horrible feeling.
The optional Traction Control System (TCS), option code NW9, also monitors rear wheel speeds and compares the rear wheel speeds to the speed of the front wheel speeds. If excessive front wheel speed is detected in either front wheels the TCS will be activated. The TCS uses the following to improve traction and vehicle stability:
Engine fuel control
Engine timing control
Front brake intervention
The traction control system uses the antilock brake system in conjunction with the powertrain control module (PCM) fuel and ignition controls to limit drive wheel slippage during acceleration. The PCM controlled portion of the traction control system reduces engine torque by any or all of the following methods:
Retarding the spark timing
Altering the air/fuel ratio
Altering the boost PWM (VIN 1)
Shutting OFF up to 3 injectors (sounds like a misfire)
To determine the amount of torque reduction required, the PCM monitors the TCS Desired Torque PWM signal from the electronic brake and traction control module (EBTCM). The PCM also provides a TCS delivered torque PWM informing the EBTCM of how much torque is being produced by the engine. The Desired Torque display on the scan tool indicates the amount of engine torque requested by the EBTCM. With the traction control inactive, the Desired Torque should vary between 99 and 100 percent . The Desired Torque display on the scan tool is not the PWM duty cycle.