Why is the engine malfunction indicator light flashing continuously?

[JakeMarie]

Engine malfunction indicator light flashing continuously is caused by the oxygen sensor detecting an abnormal air-to-fuel ratio. If it is found that the short-term fuel trim has been too large or too small for a period of time, the long-term fuel trim will be increased or decreased accordingly. This indicates that the engine control unit has been controlling the engine operation with either an enriched or lean mixture for a period of time. An engine is a machine that can convert other forms of energy into mechanical energy, including internal combustion engines, external combustion engines, electric motors, etc. The term engine can refer to either the power generation device or the entire machine including the power unit.