In today's increasingly widespread use of automobiles,engine failures are increasing.Engine as an important part of the car,once the failure will cause a variety of events,serious can endanger people's personal safety.Therefore,it is of great practical significance to study and master all kinds of engine faults and mainte-nance methods to improve the stability and maintenance level of vehicles.Based on this,this paper will study the engine fault detection and maintenance technology in vehicle maintenance.
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