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案例21:进口474发动机的无法二次启动故障一辆2002年产的长安雪虎面包车,474Q发动机,77A0电控系统,VIN:LS4ADC1R62××××××,由于第二次打火很难打着进厂维修。故障诊断:车主自述1个多月前出现动力差、热车打火难打的问题后在广东4S店及数个修理厂维修过,更换过一套喷油器与汽油滤芯。典型故障现象是早上第一次打火很容易,且动力基本正常,半途停车关钥匙后很
Case 21: Imported 474 engine can not start the second failure A 2002 production Changan Whiskers van, 474Q engine, 77A0 electronic control system, VIN: LS4ADC1R62 ××××××, because the second hit hard to hit Into the factory maintenance. Fault diagnosis: The owner read a more than a month ago appeared poor power, difficult to hit hot car ignition problems in Guangdong 4S shop and several repair shop repaired, replaced by a set of fuel injector and gasoline filter. Typical fault phenomenon is the first time in the morning ignition is easy, and the power is normal, half-way off after the key off