- What is the MAT sensor= Manifold Air Temp sensor
- What is the TP sensor= Throttle position sensor
- What is the EGR solenoid and is it mandatory= Its a valve that controls the vacuum to the EGR valve, and yes it is mandatory if you run the EGR Valve.
- Starter solenoid? whats this= With out a long answer. Be more specific in the question.
- ESC module? is that what plugs into the distributor as well= Electronic Spark Control module
- and is the idle control motor on the throttle body= Yes
- And oil pressure switch= just a it sounds, a sensor that reads oil pressure. May be for the computer to control fuel pump or for a gauge.