Lambda is a measure for the mass air to fuel ratio (AFR) present during combustion. When exactly enough fuel is combined with the available free oxygen, the mixture is chemically balanced and is called stoichiometric.
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Lambda = 1 —stoichiometric mixture
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Lambda < 1 —mixture is rich, excess fuel present
- Lambda > 1 —mixture is lean, excess air present
The amount of air that is needed depends on the type of fuel used. In the case of gasoline/petrol, a stoichiometric mixture consists of an air to fuel ratio of 14.7 to 1. For different fuel, different ratios apply. CONTACT US for information about how valuable a lambda sensor is to your racing success!
CLICK on the sensor for details, or scroll to the bottom to upgrade your existing MoTeC Lambda Sensor.
MoTeC’s LTC (Lambda to CAN) modules monitor, control and diagnose Bosch LSU 4.9 Lambda sensors, transmitting readings on a CAN bus. When multiple LTCs are used, up to 32 Lambda sensors can be configured on a single CAN bus, allowing an ECU or logging device to simultaneously monitor numerous Lambda sensors. MoTeC’s LTC is also available in a dual version, LTCD.
MoTeC’s LTCD (Lambda to CAN Dual) modules monitor, control and diagnose Bosch LSU 4.9 Lambda sensors, transmitting readings on a CAN bus. When multiple LTCDs are used, up to 32 Lambda sensors can be configured on a single CAN bus, allowing an ECU or logging device to simultaneously monitor numerous Lambda sensors.
PLM - Professional Lambda Meter
The quick and easy to use Professional Lambda Meter (PLM) measures the air fuel ratio over a wide range of mixtures with fast response time. It has the power and configurability required for both development and tuning of emission controlled vehicles and for use in motorsport.
Lambda Upgrades
Most MoTeC ECUs can be upgraded to measure wideband Lambda directly without requiring a Lambda amplifier. Depending on the device, Lambda upgrades are available in single or dual version and can be compatible with 4 wire or 5 wire Lambda sensor technology.
Precision AutoResearch
901 Hillside Drive
Bensenville, IL 60106 USA
(630) 766-4402
