In reality, there are many reasons for starting difficulty in maintenance. For example, if the injector is defective or the metering unit is faulty, it may cause the vehicle to start difficult or even unable to start, but sometimes the problem may surprise you. Although the case shared by the small rail today is not…
A fault that may not be repaired normally No trouble code There is no problem with the line No problem with parts Can you guess the point of failure? Failure case Model: Liuqi Engine: Cummins Emission standard: National IV Computer board: CM2150 Trouble phenomenon: cruise failure Troubleshooting steps Step 1: Read the fault…
1) Yuchai unit pump R01/R02 Diagnosis location: in front of the co-pilot/in the relay box/near ECU/above the accelerator pedal/near the instrument panel/in the fuse box near the left front wheel, etc.; Diagnosis seat shape and configuration: 1. Flat 4-pin -> AK-35 is recommended; Configuration: power cord (1), ground wire (1 or), signal wire (2); Note:…
The valve clearance usually changes due to the wear and deformation of the parts of the valve train. If the clearance is too large, the valve lift will be insufficient, causing insufficient intake, incomplete exhaust, and abnormal noise. If the clearance is too small, the valve will not close tightly, and it will cause air…
What is high pressure common rail? High-pressure common rail technology refers to a fuel supply method that completely separates the generation of injection pressure and the injection process in a closed-loop system composed of high-pressure fuel pumps, pressure sensors and ECUs. The high-pressure fuel pump delivers high-pressure fuel to the public fuel supply. Through precise…
Hino P11C, Hino J08E, Nissan MD9M Denso System Diagnosis location: inside the relay box, above the accelerator pedal, near the instrument panel, etc.; Diagnosis seat shape and configuration: 1. Round 16PIN->use AK-33; Configuration: power cord (1), ground wire (1), signal wire (1, 8th position); Note: Pay attention to the difference between WABCO’s ABS diagnostic interface…
The needle valve of the fuel injector burns to death The phenomenon that the needle valve of the fuel injector burns to death is that when the engine is working, when the pressure regulating screw on the fuel injector is tightened or loosened, the working condition of the engine does not change. In addition, due…
one. characteristics and general rules of car wiring Generally, a single-wire system, parallel connection of electrical equipment, grounding of the negative electrode, and lines with different colors and numbers are used to distinguish the lines, and are divided into several main lines with the ignition switch as the center. 1. Battery positive wire: lead through…
With the implementation of emission standards across the country, as an important technical means to achieve emissions, electronically controlled fuel injection technology has entered people’s attention. Today, engines with electronically controlled fuel injection technology have been on the market for a long time. In daily life, many people are accustomed to calling electronically controlled engines…
There are two phenomena of insufficient engine power, uneven speed, and thick black smoke from the exhaust pipe: One is continuous exhaust of black smoke; the other is intermittent exhaust of black smoke, and the engine shakes. ⑴ The reason for the lack of engine power and continuous black smoke discharge is that most or…