Ruifeng S2EPC light is on with fault code 80 10. Excuse me, what's the matter

Hello, generally speaking, it is the throttle problem that will cause the epc warning light to light up, which is manifested by the leakage of the air intake system, which will cause the engine control unit to light up the epc warning light after detecting the problem. This situation can also be extended to the situation when the engine is started. Do not pull out the fuel gauge or open the fuel filler cap. Otherwise, the engine controller will misjudge the air leakage at the engine air inlet, and at the same time, it will also cause a fault, which will lead to the epc light being on and the engine shaking. If there is a leak in the crankcase ventilation system, this fault may also be caused.

If there is obvious vacuum leakage, not just slight leakage, the control unit can't detect it effectively. The control unit will find the change of air-fuel ratio concentration because it receives the feedback signal from the oxygen sensor, and will adjust and compensate the actual fuel injection and ignition, which makes a series of adjustments made by the control unit based on the feedback information inaccurate. At this time, the control unit will judge that there is something wrong with the electronic throttle system. In order to protect the engine from discontinuous oil and power failure, it is best to check it with a computer. I wish you a happy driving and beg the owner. 4s shop professional technician, 10 minutes to solve.