While this isnt complete, it should help for general purposes of understanding the systems...
A comprehensive list would be at least twice as long and could be confusing
ABS Anti-Lock Braking System. ACT Air Charge Temperature (intake air, after filter) ATX Automatic Trans. BAP Barometric (atmosphere) Air Pressure sensor CC Cruise Control CCS CEL Check Engine Light. CFI Central Fuel Inj, also called Throttle Body inj CPS Camshaft (or Crankshaft) Position Sensor - used for ignition, injection timing DPFE Differential Pressure Feedback, Exhaust - measures EGR flow EECIV The Engine/Trans Computer system used from mid-80's - mid 90's ECM Engine control Module (before trans control > PCM) EFI Electronic fuel injection EGO Exhaust Gas Oxygen sensor, also called O2 sensor EGR Exhaust Gas Recirculation (valve).- reduce emissions by lowering combustion temperatures ECT Engine Coolant Temperature sensor EGRVPS EGR Valve Position Sensor tells ECM/PCM how far the EGR valve is open (Non-DPFE applications) FP Fuel Pump FPR Fuel Pressure Regulator HEGO Heated Exhaust Gas Oxygen sensor, heated to reach op temp earlier, also called O2 sensor IAC Idle Air Control (valve). Also referred to previously as ISC, IABP IAT Intake Air Temperature (sensor). IMRC Intake Manifold Runner Control (late model, multi-valve variable induction) MAF Mass Air Flow (sensor). MAP Manifold Air Pressure sensor..used in engines without MAF (speed- density systems)
MTX Manual Trans OBDII Standardized powertrain control system from mid 90's (depend on model) PCM Powertrain Control Module (engine AND trans EEC). PCV Positive Crankcase Ventilation (valve). PIP Profile Ignition Pick-up - dist position pickup, ALSO the pulse sent TO the ECM SPOUT Spark Output, the ignition timing pulse sent back to the ignition module based on PIP, engine RPM and sensor input TB Throttle Body. TC Traction Control. TFI Thick Film Ignition - Ignition module used with EECIV, side of dist on most models, remote on some later models. TPS Throttle Position Sensor. VSS Vehicle Speed sensor (with or instead of speedo cable)
Test terms: KOEO Key On Engine OFF, pulls memory codes KOER Key On Engine RUNNING, real time error info WOT Wide Open Throttle. Goose Test during KOER to test throttle position sensor and engine response STI Self Test input, EEC - ground to start test STO Self Test Output some time same electrical lead as the CEL, but carries the test pulse or data.
Any other common terms I missed, feel free to reply