ESL had been designed to emulate lambda probe in vehicles which don't require installing venturi system with a stepper motor. ESL is compatible with 1V probes.

In the moment of switchover ESL starts emulation of lambda probe with a rectangular wave with upper and lowre run equal to 200ms. It prevents petrol ECU from detecting errors which result in „check engine” light coming on the dashboard. ESL starts operation automatically after receiving an impulse from WR or WRM switch.


Device technical data
Device technical dataEmulator ESL
Operating power supply range 14V
Operating voltage range 10..16V
Operating temperature range -25...+70°C
Nominal supply current In 0,05A
Symulation type Rectangular wave 0-1V

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