不易发现的点火系故障一辆北京吉普车行驶无力，经检查为第１缸缺火。将该缸分缸线对搭铁作跳火试验，没有火花跳跃。对上述故障进行检查。首先，将其它缸的高压线调换至ｌ缸试验，仍然没有高压火，可见故障原因不在此。然后检查分电器盖，如果１缸插座处有裂纹，当分火头... Not easy to find the ignition system failure Beijing jeep driving weakness, after checking for the lack of fire in the first cylinder. The cylinder cylinder line on the iron for the flashover test, there is no spark jump. Check the above fault. First of all, the other high-pressure cylinder line to the l cylinder test, there is still no high-pressure fire, we can see the cause of the fault is not here. Then check the distributor cover, if there is a cylinder socket cracks, when the sub-fire ...