What happened to the epc light of Pu Sang dual-fuel car?

There are several reasons why the epc light is on: there is a leak in the air intake system, which causes the engine control unit to light the epc warning light after detecting the problem; If there is a leak in the crankcase ventilation system, it will also lead to this failure; Serious or obvious vacuum leakage is not a problem. The control unit cannot effectively detect a slight leak. If the compensation adjustment made by the control unit exceeds the limit allowed by the internal program of the control unit, the control unit will judge that there is something wrong with the electronic throttle system and the epc fault light will light up. However, the actual reason why the epc light lights up in this process is not caused by the functional problems of the electronic throttle control system itself.