[Steeveedee]

The TCS system was used to limit vacuum advance until the vehicle was warmed up and in high gear. This served to cause faster warm up and to limit hydrocarbon emissions. It is pretty much only a California emissions system, and can be bypassed if you want. Simply take the vacuum to the thermostatic switch (if still so equipped) and connect it directly to the vacuum advance chamber. You can also remove all the wires, if you want, as they won't serve any more purpose once the vacuum side is dealt with. You might want to keep the parts in case someone wants to put their system back to stock.