AEM 30-6905 Universal Programmable EMS-4 - Manual (Page 273)

Page 273 of 279 EMS-4 Install and Tuning Guide_Rev 1.6
Type of sensor used in all Pro Flo distributors for measuring crankshaft position. Outputs a
square wave signal pattern that is either low (ground) or high (reference voltage) depending on
whether or not a tooth is passing near the sensor.
Hg
The chemical representation for the element Mercury.
High Impedance
Refers to injectors that have coil resistance values of 12.0 ohms or more
Hot Keys
Single or combinations of key strokes that can be programmed to perform certain tasks.
Import
To receive information or data from one piece of computer software for use in another.
Inches Hg
A relative measure of pressure or vacuum.
Injector
Solenoid actuated fixed orifice valve used to inject precise amounts of fuel
Integrated Circuit
A semiconductor device that contains many circuits on a single chip.
Lambda
Term referring to the oxygen sensor itself or the data obtained from an oxygen sensor that
represent the air / fuel ratio of the engine. The lambda value is a ratio and is therefore unit-less.
Load
In fuel injection calibrations, a term used to scale the demand on an engine. Commanded fuel,
spark and other variables are assigned in the calibration file based on the load and current
operating mode of the engine.
Lookup Table
A table in software that equates one variable to another.
Low Impedance
Refers to injectors that have coil resistance values of 2.5-3.0 ohms
Macro
A feature of some computer software programs that allows a number of repeated tasks to be
combined and performed on command.