故障现象:一辆东风EQ1090E载货汽车,发动机大修后不久出现运转无力,同时伴有“回火”、“放炮”现象,汽车不能正常使用。故障检查与排除:由于发动机刚大修完不久,故把故障检查重点放在附件上,进行一些常规检查。首先检查电路部分:点火正时正确,分电器白金触点无烧蚀,分火头及分 Symptoms: a Dongfeng EQ1090E truck, engine overhaul shortly after running ineffective, accompanied by “tempering” and “shooting” phenomenon, the car can not be used normally. Troubleshooting and troubleshooting: As the engine just overhaul soon, so the focus of troubleshooting on the attachment, to conduct some routine inspections. First check the circuit part: ignition timing is correct, distributor platinum contact without ablation, the fire head and points