AEM 30-71XX Infinity Stand-Alone Programmable Engine Mangement System Full Manual User Manual

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Glossary of Terms

399

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

Math Channel
In data analysis software, a channel calculated using raw data and mathematical functions; can
be included in a plot with other data

mS
Abbreviation for millisecond or one thousandth; 0.001 seconds