火花塞测试仪/火花塞检测仪 型号;HAD-1807

用于测试汽车点火系统是否正常作 .

1.With engine off, remove spark plug wire.
2.Attach black connector to spark plug.
3.Insert metal end of tester into spark plug wire.
4.Try to start the engine.
5.If ignition circuit is complete, bulb will flash