Lambda sensor EFI Euro4/5 GY6 Rongmao EURO4/5 China Scooter | Senzo, La Souris, TYM, Riya, Santini, Fast,
For all scooters with Rongmao EFI System, EURO4 and EURO5
The Lambda sensor is a sensor mounted in the exhaust pipe.
The sensor consists of a special hollow housing, closed on one side, the inner part of which is connected to the outside air, while hot exhaust gases flow around the outer wall. The probe responds to oxygen in the exhaust gas by generating a voltage signal (variable resistance). This also measures the oxygen content in the exhaust gases. On modern scooters one often sees two instead of one lambda probe in the exhaust system. The computer (ECU) uses the signals sent by the lambda to determine the fuel ratio (fuel-air mixture).
Position:
The function of the lambda probe is mainly to ensure clean combustion and to ensure that as few harmful exhaust gases as possible are emitted. It is therefore possible that a defective lambda probe (harmful substances) can eventually destroy the catalytic converter. Conclusion: The catalytic converter needs the lambda probe to function properly. The scooter can also consume more fuel if a lambda sensor is defective. Compared to most scooters parts is a lambda probes quite easy to replace.
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