One： circuit reason The failure to start the car due to a circuit failure is mainly manifested in the fact that there is no response when turning on the ignition switch or the starting motor speed is too low, and it can feel weak. If these two phenomena occur, it can be roughly judged as…
1.engine 2.Timing system 3.Intake system 4.Exhaust system 5.Fuel System 6.cooling system 7.Spark plug
1. What is the performance of unplugging the fuel metering unit? All the fuel enters the common rail pipe, causing the rail pressure to be too high, the pressure limiting valve opens, and the limp mode is entered. It is also easy to cause the oil temperature to rise, which is detrimental to the entire…
Key points for troubleshooting of injector blockage: 1. No fault code or fault code content has nothing to do with the injector; 2. The rail pressure can reach above 25MPa when starting; 3. There is a pulse voltage signal in the injector circuit. Key points for troubleshooting of injector jams: 1. No fault code or…
Eaton and Tenneco announced a joint development agreement between Eaton Automotive Group and Tenneco Clean Air Business Group to produce an integrated exhaust thermal management system designed to enable commercial truck and light vehicle manufacturers to meet upcoming Coming emission regulations. Dmitri Konson, vice president of global engineering for Tenneco’s clean air business, said: “Tenneco…
Some failures will inevitably occur when the equipment is used for a long time. After investigation, it is found that there are three main types of failures: circuit failure, mechanical failure and external interference. 1. Circuit failure When the power is turned on, the ABS indicator light should be on, and once the vehicle speed…
Today I am going to talk about hydrogen fuel. So what will the topic of hydrogen fuel be so hot in the last two years? The background is that in December 2020, Chinese President Xi Jinping delivered an important speech at the Paris Climate Summit and announced a series of independent contributions from China. New…
Common maintenance methods for electronically controlled diesel engines 1. First outside and then inside When the engine malfunctions, first check the possible malfunctioning parts other than the electronic control system. This can avoid a fault that is not related to the electronic control system, but the system’s sensors, computers, actuators, and wiring are complicated and…
Injector total oil return test Detection Tool Fuel return hose (part number 3164618) 2 open wrenches (17# and 19#) Measuring cylinder (100ml range) Torque wrench (with 22# fork head) INLINE (INSITE is a kind) Computer with INSITE service software Barrels for collecting fuel Steps Install the oil return hose Use a wrench (19#) to remove…
1) Yuchai unit pump R01/R02 Diagnostic 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: Shape: Flat 4-pin -> AK-35 is recommended; Configuration: power cord (1), ground wire (1 or), signal wire (2); Note:…