Link CAN-Lambda Instruction Manual
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© 2021 Link Engine Management Ltd
2Introduction
2.1 Overview
Air fuel ratio information is essential information that all tuners need. The fuel input, power output and air fuel ratio
present in the exhaust form the basis of all fuel tuning. Link CAN-Lambda Modules give users a powerful method of
adding multiple oxygen sensors and bringing them into the ECU for monitoring or closed-loop lambda control. CAN-
Lambda Modules can be easily added to an existing CAN Bus, then programmed to provide the required oxygen
content.
Link CAN-Lambda uses a digital Bosch lambda controller to monitor, control and diagnose Bosch LSU 4.9 Wideband
Lambda sensors. Digital wideband offers advantages over analog sensors; no need for calibration, the digital lambda
controller is less vulnerable to the electrical noise found in the engine bay of an automobile, specifically noise created
by the high temperatures near the exhaust. Transferring the information over a CAN bus means that signals are invariant
to any noise encountered on the way to the ECU.
Link CAN-Lambda is easy to configure with Link ECUs, and is also compatible with other aftermarket ECUs,
dataloggers and dashboard displays that offer direct support for Link CAN-Lambda modules or configurable CAN.
2.2 Features
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CAN bus for bidirectional communication and no signal loss.
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Entirely digital controller and signal processing prevents circuit variation and aging problems.
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Latest Bosch technology OEM grade controller
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Automatic calibration using OEM sensor trim resistor
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Probe temperature compensation
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Fully configurable through existing PCLink Software from version 5.6.2.3098 onward.
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Maintains accuracy through variations in temperature.
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Disable when the engine is stalled by receiving RPM over CAN (optional).
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Exhaust Pressure Compensation by receiving exhaust pressure over CAN (optional).
Note: If exhaust pressure compensation is required, an appropriate pressure sensor must be installed in the exhaust,
connected to the ECU and correctly calibrated as Exhaust Pressure. If not using exhaust pressure compensation,
ensure that Exhaust Pressure reads zero at all times.
