resistance detection ignition coil (Dieselpartsworld) 2016-02-28    

Maintenance of the lack of engine cylinders caused by idling
4) resistance detection ignition coil
From the ignition coil plug, use a multimeter to test the resistance gear, the ignition coil resistance according to the following table, if the test results and the table of contents, should replace the ignition coil.
Resistance detection of ignition coil
5) detection of high voltage damping line
1) detection circuit
Check the ohm meter needle are respectively connected at both ends of the high damping line, measure the resistance, should be in the range specified by the manufacturer, such as Mazda Engine high damping line resistance value should be between the 5K ~ 9K Omega. This check check whether the main high damping line breaker (damping line broken carbon lattice).
2) short-circuit detection
It is best when the engine is operating in the flash secondary tube cathode grounding, cathode in high damping line between continuous shaking, so flash secondary tube continuous flash and "flap" sound, indicating the high damping line short circuit.
Spark plug detection
6) spark plug detection
Jump spark plug cylinder judgment is bad work. If a cylinder spark plugs, no fire, or undesirable, unplug the cylinder high-pressure junction (each cylinder 1 ignition coil of removed the cylinder ignition coil), a new spark plug connection, in the outer cylinder from the cylinder 6 ~ 8mm jump fire, such as jump fire normal, indicating that the fault in the original spark plug. In order to protect the three waycatalytic flashover time shall not exceed 10s.
In order to prevent electromagnetic interference and the spark plug is carbon rod, spark plug has obvious types of annotation, different types of spark plug carbon rod resistance values are not the same, if there is no according to type of specified by the manufacturer using spark plug, easy occurrence of electromagnetic interference, and make engine jitter.