What is the reason for the EPC light coming on while driving and then turning off after restarting?

1 Answers
IkerMarie
07/29/25 10:46pm
The reasons for the EPC light coming on while driving and then turning off after restarting are: 1. The EPC light mainly illuminates due to a dirty throttle body. In this case, simply cleaning the throttle body and then performing a reset can resolve the issue; 2. There is a fault in the intake system. When the engine detects this fault after starting, it will illuminate the EPC warning light. This situation requires inspection and repair at a service station. The main reasons for the engine fault light coming on are excessive carbon deposits in the throttle body or inside the engine, as well as a malfunctioning oxygen sensor causing an imbalance in the air-fuel mixture ratio, which can easily trigger the engine fault light. If the fault light comes on in a new car, it is usually due to the use of lower-grade fuel.
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