2. Diagnosis & Intervention Protocol à Lille
The OBD scanner of our technicians in Lille observes the oscillation of the voltage of the probe (between 0.1V and 0.9V). A slow or blocked probe causes injection misfires and quickly clogs the catalytic converter.
3. Management and Technical Solutions
If the catalyst is removed (use on circuit), the downstream probe will signal a persistent fault. Our engineers carry out a reprogramming of the ECU (O2 OFF / Lambda OFF) to deactivate this electronic monitoring.
4. Prevention and Maintenance in Lille
Avoid impacts under the vehicle and splashes of ice water on a hot exhaust, as thermal shock can break the fragile ceramic of the lambda sensor.