Notes

Suction control valve mistake signs
The suction control valve is the executive component that regulates the gas amount in the high-pressure typical rail, which is controlled by ECU. When the Suction control valve falls short, the mistake light will light up.Suction control valve mistake symptomsEngine stallSuction control valve fault symptom oneAfter the suction control valve is damaged as a result of maturing as well as other factors, gas injection can not occur, and also the fuel does not move through the valve core as well as straight enters the high-pressure gas pump, creating the engine to suddenly stop.Check: Disconnect the suction control valve to examine whether there is any deformation, clog, etc. If there is no worry, examine the o-ring rubber problem. If the o-ring rubber problem is damaged, you can replace it with a new one, and return it to start.Suction control valve fault signs and symptom twoWhen the control line is short-circuited to the ground, the engine will be shut off instantly, as well as the engine will be restricted torsion if the rail stress is also high.Suction control valve fault signs and symptom threeThe reduced end of the suction control valve is short-circuited to the ground: the 3.5 V control line is grounded. As soon as this control line is short-circuited to the ground, the ECU will certainly not have the ability to continue to control the suction control valve. Right now, the current of the suction control valve will certainly get to the optimum worth, so the generally open suction control valve oil flows will be totally shut, and the vehicle will certainly show an instantaneous flameout. The failure phenomenon.Check: Pull out the suction control valve, transform the ignition button to the ON setting, and gauge the voltage of both pins to the ground. Typically, one is 24V and also the other is about 3.3 V. If there is no voltage, the circuit is broken.Plug in the suction control valve, puncture the pin from the back end, gauge the voltage of both pins to the ground, under normal situations, the voltage is 24V, start the examination, where the drive line ought to be about 0.3 V. Check the resistance of the oil suction control valve, the typical worth is 2.6-3.2 ohms.The engine is difficult to runSuction control valve fault symptom oneSuction control valve open circuit failing: the high and low ends of the joint are open, or the line plug is not plugged in well, and the call is poor, which will certainly trigger an open circuit failing. Right now, there is no current in the suction control valve and also the spindle goes to the optimum oil supply setting; Suction control valve fault symptom twoSuction control valve short-circuit fault: the high-end as well as low-end of the joint are short-circuited. Currently, the suction control valve itself sheds present as well as the spool is also at the optimum oil supply setting; Suction control valve mistake symptom threeThe high-end of the suction control valve is short-circuited to the ground: At this time, the suction control valve itself will certainly also shed existing, that is, the suction control valve no longer does work, and also the spool is also at the maximum gas supply setting; The incident of the above 3 problems will create the stress in the usual rail pipeline to be too expensive. Currently, it will trigger the typical rail stress restricting valve to open as well as release the pressure. As soon as the typical rail pressure limiting valve fails to open, the engine will be restricted in torque, showing a failing sensation of driving weakness.Pressure detection alike rail pipeCheck whether the low-pressure oil circuit is leaking or obstructed (tighten the hoops of all pipelines, inspect whether there are folds up, whether the gas tank is open to the ambience, and whether the submarine pipe in the fuel tank is obstructed by foreign matter). Check the fuel return quantity of the gas injector. Under typical conditions, the gas return does not exceed the steel plane on the U-shaped card of the fuel injector.Check the fuel shot volume of the gas injector. You can take the gas injector out as well as attach it out. If the fuel injector is leaking throughout the startup process, the injector needle valve may be embeded an open state. Keep in mind: For the regular opening as well as shot problems of the injector, the rail pressure have to be higher than 25M. Examine whether the oil pump stress safety valve is stuck in an open state, it can be taken apart and cleaned.Suction control valve mistake sign fourIt is very vital to avoid the high rail pressure brought on by the sticking of the spool. It is necessary to use certified gas oil and also diesel filter.The spindle is stuck. For example, when the automobile is decreasing and going downhill, the engine will go into the slowdown cut-off mode, that is, it will certainly remove the fuel supply of the injector, and also the suction control valve solenoid valve should be entirely closed at this time to avoid the oil stress in the typical rail pipeline from continuously raising. Nonetheless, if the valve core in the suction control valve is stuck at this time around, the fuel will certainly continue to go into the common rail pipe, as well as the oil pressure will certainly remain to rise, causing the stress restricting valve to be forcibly opened up, and the engine gets in the protection state. When the rate is restricted, it will certainly likewise reveal the sensation of driving weakness.The inner valve core of the fuel suction control valve is stuck or used prematurely. A lot of it is caused by too much pollutants in the gas. As DZ111135 , along with refueling at a routine gas station, you must additionally use a certified diesel filter to ensure yourself The parts on the lorry can be made use of for a longer life.Severe idlingThe continual opening time is as well lengthy and also the system stress is expensive, which will certainly cause the engine to enter the reliable mode, in which the engine power is limited. At the same time, driving weakness occurs.If the Suction control valve falls short, replace it in time. Inferior Suction control valve has a much shorter life span and poor use result. When it runs into inferior diesel, it might crash right away. When there is an issue with the suction control valve, how to discover the trouble with the suction control valve and also whether it requires to be changed in time.


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