idling fault diagnosis (Dieselpartsworld) 2016-02-28    

The lack of engine cylinders caused by idling fault diagnosis
There are 1 reasons causing the engine cylinder misfiring most frequently with each cylinder a ignition coil. First by infrared thermometer by check the cylinder exhaust manifold temperature, such as a cylinder exhaust manifold temperature is too low, should focus on examination of the cylinder ignition coil is open circuit, the high voltage damping wire is broken, the spark plug is faulty.
Maintenance of the lack of engine cylinders caused by idling
Single cylinder independent ignition coil structure 1 - ignition coil appearance figure 2 - ignition coil 3 ignition coil electrical system connection Figure 4 - cylinder ignition coil 5 second cylinder ignition coil 6 - three cylinder ignition coil 7 - four cylinder ignition coil 8 cooler and a signal amplifier 9 - ignition switch 10 battery A-minus ignition coil control signal terminal B grounding terminal C power supply terminal
1) detection condition of the ignition coil
The ignition coil testing requirements, the battery voltage must be higher than 11.5V, the engine crankshaft position sensor and camshaft position sensor work.
Maintenance of the lack of engine cylinders caused by idling