1 = SimSun1 çš é›š 电 ä»– 2 manual transmission bridge 3 cold start injector 4 ignition opening thermal time control sweat off 6 starter We have repaired an Audi car, the fault is that the cold car is not easy to start.
For this motive, the electric circuit of this car was changed by others before entering the factory. The plug connected to the cold start fuel injector and the wire on the plug have been cut off, and the wire end of the cut wire cannot be found around. Judging from this, the reason why the car is not easy to start is that the cold start injector is not working. The manual of the cold start injector is not working. The current of the cold start injector circuit of the car is controlled by the battery + 30 power line ignition switch 30, Terminal ignition switch 50 terminal manual transmission bridge starter 50 terminal electromagnetic switch suction coil electromagnetic switch contact starter 15, terminal + cold start injector coil thermal time control switch contact ground battery. At this time, the coil of the cold start injector is energized to inject oil, thereby playing the role of enriching the cold start. At the same time, the other circuit is connected to the battery + off 30 terminal ignition switch 50 terminal manual transmission bridge thermal time control switch heating coil battery, because the heating coil of the thermal time control switch is energized, its contacts are opened, cold start injection When the water temperature is lower than 20 °, the thermosensitive time-controlled switch contact is closed at a time of 7.5. After understanding the principle, we take the live wire from the starter 15 and connect it to the cold start injector, and then remove it The wiring harness is covered with tape to find out the reason why the cold start electric spray is coming. Zhangjiakou Yanxing Machinery Factory, 75, 1 Jiamao ordinary Santana car cannot start. Based on the analysis of experience, it is considered that the grounding is bad. After inspection, it was found that the ground wire was loose. After re-installing and tightening, the engine still cannot be started, but the exhaust smells of gasoline, and it can be preliminarily concluded that there is no fault in the oil circuit. Unplug the high-line test fire, the spark is weak. Open the distributor cover and find that there is oil dirt, although it can start after wiping it clean, but there is a flameout during driving. At this time, pull out the high-voltage wire to test the fire, without sparks; check the secondary side of the ignition coil, and there is no high-voltage electrical output; further check the Power Supply side of the low-voltage circuit, there is electricity, which shows that after analysis between the distributor and the igniter, due to careless maintenance Make the connector aging and poor contact, causing the engine + to start. Received period 200007 car maintenance and repair
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19v 4.74a, 5525
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