Glossary “Lambda Sond” Definition:
The first closed-loop, fuel injected system to appear in production, developed jointly by Robert Bosch and SAAB.
l
LAMBSE
Glossary “LAMBSE” Definition:
A measure of the A/F ratio. 1.0 = 14.7:1, if the ratio is less than 1.0, the mixture is consider to be rich (less air), if less than 1.0, the mixture is considered to be lean (more air). Short term fuel trim as the engine operates in closed loop fuel control mode.
ladder frame
Glossary “ladder frame” Definition:
Term used for ladder chassis.
lag
Glossary “lag” Definition:
1). The incorrect operation of a shock absorber because of aeration due to the mixing of air with oils, causing the shock absorber to produce a poor ride. 2). A hesitation in throttle response. 3). Time it takes a turbocharger to catch up with demand.
lambda
Glossary “lambda” Definition:
1). The Greek letter L. 2). Term used by engineers to represent A/F ratio. 3). A European auto maker’s term for the oxygen sensor.
lambda control
Glossary “lambda control” Definition:
Using a lambda, sensor-controlled computer to adjust the air/fuel mixture.
lacing
Glossary “lacing” Definition:
Method used to mend cracks in cylinder heads and blocks using threaded repair plugs side-by-side and overlapping each other.
lack of power
Glossary “lack of power” Definition:
Excessive accelerator application is required to achieve cruise speed. Acceleration is slower than expected.
lacquer
Glossary “lacquer” Definition:
Type of paint that dries by solvent evaporation that must be rubbed out to produce a gloss.
ladder bars
Glossary “ladder bars” Definition:
Device attached to the chassis or frame at one point and to the rear axle at two points, to reduce rear-axle windup.
ladder chassis
Glossary “ladder chassis” Definition:
A conventional frame design that consists of two side rails, not necessarily parallel, connected to each other by a series of cross members like a ladder.
LAC & LACN
Glossary “LAC & LACN” Definition:
Low Vacuum Air Control Valve and Low Vacuum Air Control Valve
lace painting
Glossary “lace painting” Definition:
Involves spraying through lace fabric to produce a custom pattern in the paint.
LAC & EACN
Glossary “LAC & EACN” Definition:
Low Vacuum Air Control Valve and Electric Air Control Valve
L4
Glossary “L4” Definition:
In-line four cylinder
lab scope
Glossary “lab scope” Definition:
Device for viewing electrical signals as waveforms, usually portable.
labeled
Glossary “labeled” Definition:
Identifying mark or trademark of a nationally recognized testing lab that is attached to signify that the item has been tested and meets appropriate standards.
LAC
Glossary “LAC” Definition:
Low Vacuum Air Control Valve
L-head
Glossary “L-head” Definition:
Term used for L-head engine.
L-head engine
Glossary “L-head engine” Definition:
Engine with intake and exhaust valves in the block, parallel to the pistons and cylinders.