2018年7月18日星期三

VIDENT iLink400 Complete Data List Introduce

VIDENT iLink400 Scanner Complete Data List menu lets you view all live PID data from a selected system.

1. Scroll with the up and down arrow keys to highlight a line, if the One Graphic on the bottom is highlighted, it indicates graphing is available for the selected line. Press the function key One
Graphic to display the PID graph.
2. Press the function key Two Graphics to display two PID graphs in one screen.

3. Press the function key Merge Graph to display two PID plots in one coordinate for easy and intuitive diagnosis.

4. To record the data to memory of the scan tool, use the function key SAVE, and press Stop
Saving to stop recording at any time.
5. Press Text to return to text viewing of PID data.
6. Select Pause to suspend collecting data from the scan tool and use the Start key to resume collecting data.
7. Press the ECS key to return to the previous menu.
src:http://www.uobdii.com/wholesale/vident-ilink400-scan-tool-single-maker.html

2018年5月29日星期二

How to Perform BMW FEM/BDC Key Learning by CGDI BMW

CGDI BMW FEM BDC key learn is in the dismantling method instead of OBD method. Then you have to know the FEM/BDC system location, 95128 IC location, 95256 IC location and Key learning position, read the detail in the below parts.
 CGDI Shop
  1. BMW FEM/ BDC installation location.
bmw-fem-bdc-key-learn-01
CGDI Benz Programmer
  1. 95128 IC location
bmw-fem-bdc-key-learn-02

  1. 95256 IC location
bmw-fem-bdc-key-learn-03
  1. Key learning position
bmw-fem-bdc-key-learn-04

That’s all.

Value bundle:
CGDI Prog BMW MSV80 plus BWM FEM/BDC Authorization.

2018年1月8日星期一

How to solve MB SD C4 Insert Batteryi and Initialization Failed

Mercedes Benz MB SD Connect Compact 4 MB Star diagnostic system “Please insert batteries” and“Initialization of diagnosis multiplexer failed” solution are provided.MB SD C5
Problem:
One of the Mercedes MB SD Connect C4 user has the problem when using the star C4 diagnostic system.
Error 1: Please insert batteries.

Error 2: Initialization of diagnosis multiplexer failed
Possible reason:
He has not got the MB SD C4 connected with Dell D630 laptop to build communication.
Solution:
Check the SD Connect C4 icon on the bottom of the toolbar, power on the SDConnect and connect the diagnostic scanner with computer, if the #21 device displays in “x” status,it indicates the C4 multiplexer is not well connected or well configured,how to tell:
1.Open laptop Local Network Connection->SD C4 WLAN,disconnect then connect to check if network connection has changed. If the network remains unchanged,change another laptop and do the same setting.
2.If network status did not change on any laptops,then change a new LAN cable.If still no changes,you have to send back your SD C4 main unit for repair.

http://blog.uobdii.com

2017年10月10日星期二

Benz E200 check engine light, idle when the engine vibration, slow speed

Symptom
A Mercedes E200 configuration 271EVO engine and 722.9 transmission, mileage of 131670km. The car to replace the oil filter base, 4 days after the engine fault light, and idle engine jitter, the vehicle speed slow.xtool x100 pro

Troubleshooting and troubleshooting
The car replaced the oil filter base, disassembled the intake manifold, according to the initial phenomenon of the fault to determine the following reasons: the intake system in a vacuum tube leak or not installed in place; intake manifold leak ; Throttle does not match well, or is not installed in place; ignition problem; xtool ez500 oil supply problem.

Because the car did not change the maintenance of the spark plug, VVDI MB Tool and the last into the store to check the spark plug attached to a lot of coke, and the phenomenon of burning the electrode, first with a new spark plug installed, the car after the engine or jitter. There is no problem with the spark plug connected to the diagnosis of the spark plug. Read the fault code: P0172 mixture (cylinder column 1) is too thick, the signal amplitude is greater than the maximum amplitude. The meaning of the fault code is the mixture is too thick, resulting in mixed gas is too thick because the main reason is too much fuel injection, too little intake or burning is not good. Follow the fault code to guide the actual value of the engine under idling conditions.VVDI Key Tool


The actual value of the rail pressure is 5440kPa (marked value is 4540 ~ 6540kPa), which will remove the problem of high pressure pump. Throttle downstream pressure sensor pressure value of 48.266kPa (standard value of 20 ~ 40kPa), the signal voltage is 1.0V (standard value is 0.5 ~ 0.7V). There are two reasons for its actual value: the sensor and its line problems; air intake system in a part of the leak. According to the circuit diagram to measure the sensor supply voltage of 5V, ground and signal lines are normal. Throttle upstream pressure sensor and the downstream pressure sensor, the two sensors are interchangeable, the actual value of the sensor is still incorrect, indicating that the sensor and its line is no problem. Next check the air intake system where there is no leakage,VVDI Key Tool.

In the first easy after the difficult principle, first check the intake system of each vacuum tube with or without leakage of the place, and then check the throttle, remove the throttle to see the seal is not damaged and crushed place, flap is not issued card , To save the throttle again after the replacement, with a diagnostic instrument to re-learn, taking into account the E-class 212 models in the diagnostic test when the voltage requirements are more stringent, when the battery voltage is lower than 11.6V when some of the elements of learning And the match may not succeed. Connected to the battery charger on the throttle to relearn, start the vehicle, the fault remains the same, remove the throttle problem,VVDI MB Tool. Then focus on checking the intake manifold, remove the intake manifold to see its seal is intact, no abnormalities, but also in the seal on the sealant, and then installed in accordance with the standard torque intake manifold. Start the car, the engine or jitter, throttle downstream pressure sensor actual value is not normal. Re-order ideas, starting from the air intake step by step careful investigation, see whether the missing part. When the rear of the air filter to check the intake pipe, found that as long as the pull out of the intake pipe connected to the secondary air jet pump hose (below),MB SD C4 the engine does not shake, and the actual value of the throttle downstream pressure sensor Also fell to the normal range. Put the handle near the hose, can obviously feel the warm air blowing, smell like the exhaust gas from the cylinder.



This tube is the secondary air jet pump inlet pipe, the secondary air jet pump is usually only in the coolant temperature between 10 ~ 60 ℃, the engine speed is less than 3000r / min, the engine is idle or part of the load. The secondary air jet pump draws fresh air from here and then switches the vacuum control secondary air injection valve from the intake manifold by the air pump changeover valve (Y32). The fresh air enters the row of the cylinder head with the secondary air injection valve Gas and exhaust gas to react, so that the three-way catalytic converter as soon as possible to achieve the working temperature, thus improving the warm-up process of emission performance. According to the working principle of the secondary air injection system, this tube should not be blown out of the air. There are two reasons for this phenomenon: the air pump switching valve (Y32) is always in the normally open state, the air pump switching valve (Y32) has been through the vacuum to open the secondary air injection valve; secondary air injection valve stuck, Open the state. Through the diagnostic device to observe the actual value of the air pump switch valve, has been in a closed state, and then through the diagnostic instrument to activate the open, close are normal, the exclusion is the air pump switch valve (Y32) problem. The following left the second air injection valve, and remove the secondary air injection valve and open and found the diaphragm was coke locked, can not be closed.



Since the secondary air injection valve can not be completely closed, the exhaust gas is returned to the intake pipe through the piping of the secondary air injection system so that the pressure of the intake manifold is increased and the exhaust gas is then introduced into the cylinder.

Because the entry of the exhaust gas, relatively fresh air will be reduced, so that fuel can not be fully burned, air-fuel ratio is not right, the engine jitter and reported mixed gas too thick fault. The secondary air injection valve carbon deposition clean, re-installed back, the engine running smoothly, the problem solved.

The next morning to wash the car ready to pick up the goods, start the vehicle and found the vehicle just off the car immediately, and then start the second time, start time is too long, but after the start of the engine running very smoothly. Then start a few times, everything is normal. Stopped a dozen minutes to start again, the failure appeared. And then use a multimeter to measure the starting voltage of 10V, normal. The low pressure of the fuel system is measured at about 500 kPa (standard value 400 to 670 kPa). Connect the diagnostic device, analyze the actual value of the engine at startup, found that the actual value of the downstream pressure sensor is not normal, its value is 38.6kPa
(Standard value is 20 ~ 40kPa), close to the critical value. Will be the second air pump inlet hose unplugged and found a blown air, turn off after ten minutes and then start the vehicle again, everything is normal. Again remove the secondary air injection valve and find that the diaphragm is jammed again. Remove the coke after careful observation, the diaphragm has been deformed, off lax, it is easy to be coke locked.

Replace the new secondary air injection valve after troubleshooting.

Fault summary
In the troubleshooting, we must comprehensively, CGDI MB Benz comprehensively and systematically consider, master the working principle of the engine system, according to the working principle of the possible parts of the failure to exclude one by one, careful analysis of the various failures and the actual value is very important Can help us find ideas and found that difficult to find the point of failure.


2017年8月18日星期五

How to diagnose and solve Auto Cylinder Leak

Cylinder leak detection using the cylinder leak detector.The basic principle of the test is to use the compressed air filled into the cylinder, with a pressure gauge to detect the piston at the end of the compression at the end of the cylinder when the Yanhua DR-Key adapter pressure changes, to characterize the entire cylinder group of OBD2 sealing.That is, not only the seal of the piston piston friction, but also to characterize the intake and exhaust valve, cylinder liner, cylinder head and cylinder seal.

 (1) cylinder leak detector structure and working principleDomestic QLY-1 type cylinder leak detection Diagspeed MB Key device mainly by the pressure reducing valve, intake pressure gauge, measuring table, calibration orifice, rubber hose, quick change pipe fittings and inflatable mouth and other components, as shown in Figure 2-12 The In addition, there must be an external air supply, a pointer to the piston position and a piston positioning plate.The pressure of the external air supply should be equivalent to the cylinder compression pressure, generally should be 600 ~ 900kPa. Compressed air according to the direction of the arrow into the cylinder leak detector, the pressure from the intake pressure gauge display.

WithAfter which it enters the cylinder at the end of the compression end through the pressure reducing valve,Fcar FVCI Passthru tool the calibration orifice plate, the rubber hose, the quick change pipe fitting, and the inflatable nozzle. The pressure change in the cylinder is shown by the gauge. The pressure changesThe condition indicates the seal of the cylinder block.Cylinder Leakage Diagnostic Parameter StandardFor the cylinder leak, China has not developed a unified diagnostic parameters. Auto Repair

QLY-1 Cylinder Air Leakage Detector In the instruction manual, for the engine of the domestic truck, when the inlet, the exhaust valve and the cylinder liner are well sealed, the cylinder seal condition (mainly refers to the cylinder piston) Judgments can be dealt with in Table 2-6. When the meter reading is greater than 250kPa,Cylinder piston with sub-sealing conditions meet the requirements, the engine can continue to use; when the meter reading is less than 250kPa, the cylinder plug with the deputy seal does not meet the requirements of the engine cylinder to be ring or boring cylinder. Transportation industry standard JT / T201-1995 "vehicle maintenance process specifications" in the vehicle before the second maintenance of the use of the reference diagnostic parameters of the standard requirements of domestic Dongfeng EQ1090 and the liberation of CA1091 car cylinder leak, When the cylinder piston is placed in the static compression top dead center position, the measured gauge pressure should be ≥ 250kPa.

2017年7月26日星期三

What Is Auto Immobolizer System?

Car theft system refers to the system that prevents the car itself or the items on the car from being stolen. It consists of electronically controlled remote control or key, electronic control circuit,CGDI Prog alarm device and the implementation of institutions and other components.  


The earliest car door lock is a mechanical door lock, only for car driving to prevent the door automatically open and accident, only the safety of traffic, can not afford the anti-theft effect. With the progress of society, the development of science and technology  SKP1000 Programmer and the increasing number of cars, and later the manufacture of cars, trucks doors are equipped with a key lock. The door locks only one door, and the other door is opened or locked by the door lock on the door VVDI Key Tool

In order to better play the role of anti-theft, and some cars also equipped with a steering lock. The steering lock is used to lock the steering wheel of the car. The steering lock is locked with the ignition and is installed under the steering wheel, which is controlled by the key X431.

 That is, the ignition lock cut off the ignition circuit to turn off the engine, the ignition key and then left to the extreme position of the gear, the latch will be extended into the steering shaft slot, the car steering shaft mechanical lock. Even if someone will open the door and start the engine illegally, because the steering wheel is locked, the car can not be turned, it can not drive away, so played a car anti-theft effect Fcar F3-G

 Some cars are designed and manufactured without a steering lock, but with another so-called crutches lock the steering wheel, so that the steering wheel can not turn, but also can play an anti-theft effect. Some cars in the transmission with a mechanical lock, the transmission lever is locked, so that the theft can not be linked to the car can not move. Ignition switch is used to turn on or off the engine ignition system circuit, according to a key to open a lock of the truth, but also played a certain anti-theft effect. As the car technology continues to develop, most cars are installed on the central door locks, that is, the car door locks and luggage compartment lock to achieve centralized control.

2017年7月13日星期四

Magenta Pump Leakage Coolant Failure Case

Vehicle Information
Model: MAGOTAN 1.8T
Symptom:

MAGOTAN 1.8T new car more than 4,000 kilometers of water pump leakage of coolant, replace the pump after driving more than 1,000 kilometers, the pump once again leak antifreeze.Launch X431 Tool


Fault analysis and maintenance process Vpecker E4
1. When the vehicle travels 4011km, the station checks the leakage antifreeze. After checking the water tank, it leaks the antifreeze, removes the water pump and finds that the temperature inside the side outlet of the thermostat is damaged.Fcar F502
2. Replace the pump after the vehicle and travel about 1000km, once again complained about the antifreeze and leakage, check or water leakage at the pump antifreeze. Remove the pump to find the pump or in the side of the thermostat side of the outlet is damaged, the damage is the same as the first, (as shown below)
Professional DPF+EGR Remover 3.0
3. Because this vehicle is a new car and the damage location of the two pumps is roughly the same, analysis and pump quality problems caused by the probability is not that there should be other aspects of the problem, resulting in a series of damage to the pump.OBDSTAR TP50


On the form of damage to the pump, there are several possibilities:


1, the quality of the pump itself is a problem
2, the installation location of the pump problem
3, the installation of the pump cylinder surface protruding
4, there are external forces lead
4 because the water has been continuously damaged two pumps, analysis of the pump itself is unlikely to cause the problem; the new pump smear sealant, check the location of the pump installation; the engine block and the pump surface of the flatness of the inspection, Check the flatness normal.

5. In the process of inspection SBB Key Programmer found in the 2-cylinder, 3-cylinder injector at the bottom of a large number of yellow gasoline residue traces (as shown below), combined with the customer response sometimes in the cab can smell the smell of gasoline. Analysis of the traces should be leaking out of the gasoline traces, but the leakage of gasoline and water pump damage is it?



6. Further inspection VVDI found that the pump seal some swelling (see below), originally thought that the pump shell damage after the shell elongated, and now look at the petrol bedroom seal, resulting in swelling, and thus bulging the shell Body, causing leakage.


7. From the oil point of view 2 cylinder 3 cylinder position traces of gasoline traces more serious, remove the 2 cylinder, 3 cylinder nozzle, can be observed in the 3-cylinder fuel injector plug with gasoline, the surface of the gasoline flow trace. To determine the fault is caused by the 2-cylinder, 3-cylinder injector oil spill. The results replaced the 2-cylinder, 3-cylinder injector, and replaced the 1-cylinder, 4-cylinder nozzle seal.

8. After the vehicle is shipped, it is tracked, the next day the customer feedback feels good. And after a few days of customer feedback, in the cab and smell the smell of gasoline. Immediately about customers to check.skp900 programmer

9. Vehicles came to the service station, open the engine compartment, you can smell the smell of gasoline. Because the car's fuel injector installed in the lower part of the inlet, the eyes can not look directly to, in order to be able to accurately find the leakage point, learn the first two training lessons, in no hurry to disassemble and repair. The engine was in a state of fire, carefully observed in the bottom of the 4-cylinder injector formed gasoline droplets, check found in the top of the 4-cylinder injector, from the rails to leaking gasoline.


10. After removing the rails, observe that the guide rail has a vertical groove at the installation of the 4-cylinder injector. Sealed the place, put the rails up, into the gasoline, after a period of time, can be observed from the vertical at the vertical leakage of gasoline. (Pictured)


Failure analysis:

Because the 4-cylinder fuel rails have cracks, resulting in gasoline leakage, leaking out of the gasoline gradually immersed in the pump seal, the ring erosion swelling, resulting in damage to the pump, leakage antifreeze,


Troubleshooting:

Replacement of oil rails and pumps


Special tools / equipment: T10133 torque wrench VAS6150B OBD2


Maintenance Summary:

Water pump leakage is a more common fault, but the new car in the short term continuous damage we first met. The second maintenance, although checked out of the gasoline leak, led to the pump seal inflated, but did not find the root cause of the problem. On the one hand is the main location of the fuel injector installed in the lower part of the inlet, the naked eye can not be observed; the other hand, our inspection work is not enough detail. Need to sum up lessons learned. Do a good job of technical work, to study the investigation, root cause.