Fault Diagnosis of Electronic Controlled Engine by Using Oxygen Sensor

The oxygen sensor of electronic fuel injection engine is one of important sensors in electronic control gasoline injection system. The oxygen sensor can do the role of monitoring and instruction to internal combustion in engine cylinder. This paper verify oxygen sensor in the diagnosis of the role of EFI engine failure through measuring engine-related parameters and waveforms, such as oxygen sensor signal the experimental rig of failure simulation for electronic controlled engine on the fault diagnosis EFI engine test stand.