- AAT – Ambient Air Temperature
- CCT – Catalytic Converter Temperature
- ECT – Engine Coolant Temperature
- EOT – Engine Oil Temperature
- EVT – Exhaust Valve Temperature
- MBT – Minimum Timing for Best Torque
- AFR – Air to Fuel Ratio (Lambda)
- DC – Duty Cycle (used with various solenoids)
- ECU – Engine Control Unit (also known as PCM)
- MAP – Manifold Absolute Pressure (Post-Throttle)
- OAR – Octane Adjust Ratio
- FRP – Fuel Rail Pressure
- LTT – Load To Torque
- OTS – Off The Shelf
- OB – Overboost
- LSPI – Low Speed Pre-Ignition
- HDFX – High Degree of Freedom Executive
| - CAT – Charge Air Temperature
- COT – Compressor Outlet Temperature
- EFT – Exhaust Flange Temperature
- TOT – Transmission Oil Temperature
- IAT – Intake Air Temperature
- BL – Borderline (for ignition timing tables)
- CL/OL – Closed Loop/Open Loop (for fueling tables)
- DTC – Diagnostic Trouble Code
- O2 – Oxygen Sensor
- TIP – Throttle Inlet Pressure (Pre-Throttle)
- VCT – Variable Camshaft Timing
- VSS – Vehicle Speed Signal (MPH/KPH)
- TTL – Torque To Load
- FBO – Full Bolt Ons
- UB – Underboost
- PD – Power Demand
- VE – Volumetric Efficiency
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