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May Automotive Parts Manufacturing & Supplying Co,.Ltd
May Automotive Parts Manufacturing & Supplying Co,.Ltd

Natural Gas Ignition Coils

MAPMS supplies various types of CNG and LNG ignition coils, with a special selection of materials, MAMPS ignition coil factory has features for huge ignition energy, high-temperature resistance, high voltage resistance, high output voltage, sufficient combustion, good heat dissipation performance, long service life, less pollution, and green environmental protection.

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Key Features of Natural Gas Ignition Coils

huge ignition energy, high temperature resistance, high voltage resistance.

high output voltage, sufficient combustion, good heat dissipation performance.

long service life.

less pollution, and green environmental protection.



How Do You Test Natural Gas Ignition Coils?


Use the natural gas engine diagnostic wiring harness to connect the computer and the vehicle diagnostic interface, start the vehicle and run for a few minutes, and at the same time use the diagnostic software on the computer to test the ignition system for cylinder disconnection. The following methods rule out whether the natural gas ignition coil is faulty.


Cylinder break test steps:

1) Use the diagnostic harness to connect the computer and the vehicle diagnostic interface for communication;

2) Select the "faults" page of the diagnostic software;

3) Use the mouse to select the two data displays of engine speed and ignition advance angle, click the right mouse button to make it green, and click the P key of the computer keyboard to pop up the curve bar;

Click the cylinder judgment function option to select the cylinder to be judged. Observe whether the curve of engine speed and ignition advance angle changes. If the curve changes, it means that the cylinder is working; if it does not change, it means that the cylinder is not working.

During the cylinder break test, after one cylinder is cut off, it should return to "normal", and then the next cylinder break test should be carried out. The break time of each cylinder should not be too long, about 5 seconds. Cylinder is disconnected.


- Check whether the plug and connector of the natural gas ignition coil harness of the faulty cylinder are disconnected and whether they are inserted in place;

- Check whether the natural gas ignition coil plug and wiring harness plug of the faulty cylinder are damaged;

- Use a multimeter to check whether the wiring harness pin of the natural gas ignition coil of the faulty cylinder is connected to the corresponding ECU wiring harness pin;

- Check whether the wiring harness pin of the natural gas ignition coil of the faulty cylinder is connected to the 14th pin of the XE1 plug (the 83rd pin of the ECU);

- Check whether the natural gas ignition coil rubber sheath is broken down, trachoma, or damaged; whether there is rust (or oil stains), and whether there is water (or oil) in the spark plug bushing;

- Check whether there are foreign objects in the high-voltage line connector of the natural gas ignition coil;

- Use the new ignition test device to check whether the ignition of the natural gas ignition coil is normal. Under normal conditions, the spark color is lavender, the sound is relatively mellow, and the ammeter pointer indicates 0.6 to 1.0A. If it is greater than 1.0A, the positive and negative poles of the natural gas ignition coil may be reversed. If it is less than this value, it may be that the natural gas ignition coil is in poor contact or the coil is faulty. For the specific use of the device, please refer to the "Automotive Ignition Coil Tester User Manual".


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