e-doctor user manual - dmo macchine e-doctor... · 2014-02-17 · 1 major functions available from...
TRANSCRIPT
e-Doctor User Manual DL06, DL08 and DV11engine
June, 2010AP/E Product Support TeamText No. ENG0012
1
Major functions available from e - Doctor
- Show to the user the engine failure status, history and trouble shooting manual : ‘Fault codes’.
- View monitored engine’s components working behavior & value of critical parameters :‘Service Data’ / ‘Snap shot’.
- Save engine data for checking engine condition : ‘Service Data’ / ‘Snap shot’.
- Check power deviation between cylinders : ‘Run-up Test’.
- Check compression deviation between cylinders : ‘Compression Test’.
- Check an engine’s behavior to a set of simulated sensor inputs from the laptop : ‘Remote Control’.
- Enable to up grade ECU program : ‘Reprogramming’.
- See ECU Information (controller revision, …) : ‘ECU Information’
2
Table of content
1. KIT’s parts number & contents ---------------------------------------- (3-4)
2. Software installation guide ---------------------------------------- (5-14)1. Software installation 2. ‘USB’ port’s driver installation
3. User registration & login ---------------------------------------- (15-17)1. User registration 2. Login (start of each session)
4. Operation of ‘e-Doctor’ ---------------------------------------- (18-52)1. Top Bar menu2-12. Screen menu:
2. Connect ECU 3. Connection setting 4. Fault codes 5. Service data6. Snap shot 7. Run-Up test8. Compression test 9. Remote control
10. Register machine ID 11. Re programming12. ECU information
5. Laptop information ---------------------------------------- (53)
6. Appendix (Cut off test) ---------------------------------------- (54-71)
3
1. e - Doctor Kit Components (P/N : K9001683)
Program Installation CD Gate way (Module) Main Harness (Module - 14 pin harness)
USB Port cable Serial Port cable 14 Pin Harness(Module - Lap top USB port) (Module - Lap top serial port) (Main harness - Check connector)
4
Wiring connection between machine check connector and laptop
← Lap top (USB or Serial Port)
Check connector →(14pin check connector)
5
Communication Module
6
Harness Pin Information
7
Harness Pin Information
Ex) DL300 Electrical Circuit
Ex) DX300LC Electrical Circuit
Pin #3 – CAN A
Pin #4 – CAN A
Pin #11 – Interface
Pin #12 – (+) Supply
Pin #13 – (-) Ground
8
2. Install program (e-Doctor)
Windows XP / vista versionInstall e Doctor program
- Insert the installation CD in your lap top computer.- Copy and save “USB gateway driver” from the CD to your laptop (any folder, any location is okay) - And double click on directory “e- Doctor2.00”
Save USB Gateway driver on your laptop
Double click
9
2. Install program (e-Doctor)
Windows XP / vista version- Double click “e- Doctor2.00 exe” and click “next” in the installation wizard
Click ‘Next’
- Click “Install” and wait for the installation to be completed.
Click ‘Finish’Click ‘Install’
10
2. Install program (e-Doctor)
Windows XP / vista version
- Click “OK” and Click ‘yes’ for restart system
Click ‘OK’ Click ‘Yes’
Then, the e- Doctor program installation is completed on your laptop
11
2. Install program (USB Driver)
Windows XP versionSet up USB driver
- Connect the USB cable on your laptop, the USB cable must be connected with gateway only as below condition (Do not connect main harness to machine)
Connect USB cable on your laptop
Do not connect main harness to machine
12
2. Install program (USB Driver)
Windows XP version- Your laptop will recognize the new hardware as shown below (top left screen), If your laptop looks for
the USB gateway driver, indicate the driver location (top right screen) by giving the directory name selected as explained on page 5 -line 2. Click “OK “.
Click here
Click ‘Next’
Click hereClick ‘Next’
Click ‘Continue’
Click ‘Finish’
Then, the USB drive installation is completed on your laptop
13
2. Install program (USB Driver)
Windows vista versionTurn user account control off
- Start and go to control panel
Click
Click
Click
14
2. Install program (USB Driver)
Windows vista version- Disable ‘Use User Account Control (UAC) to help protect your computer
Click
Click
15
2. Install program (USB Driver)
Windows vista versionSet – up USB driver
- Connect the USB cable on your laptop, the USB cable must be connected with gateway only as below condition (Do not connect main harness to machine)
Connect USB cable on your laptop
Do not connect main harness to machine
16
2. Install program (USB Driver)
Windows vista versionSet – up USB driver
Click
Click
Click
Click
17
2. Install program (USB Driver)
Windows vista versionSet – up USB driver
Click
Click
Click Click
Then, the USB drive installation is completed on your laptop
18
3. User Registration and Log In
1. User Registration
As soon as the installation is fully completed, click on ‘e Doctor’ icon, and the window shown on this page will be displayed. Record the unique ID (i.e.:03b41a93). Select a ‘User ID’ having 6 digits (see next page) to access the software. Send both the ‘unique ID’ & the ‘user ID’ to the program manager in Doosan infracore (Korea). The user ID is not supplied by the program manager. You have to make your own choice. The program manager will give you a ‘system key No’ and a ‘password’ related with your ID.
Note: Each hardware (laptop) has its own unique ID. If the hardware is changed, you must get another system key No and password.
19
3. User Registration and Log In
1. User Registration
If you enter the ‘system key No’ which is obtained from the program manager, you can see the above window.
Enter your ID and ‘password’ which is obtained from the program manger. Click OK. You can now use e-Doctor.
Every time you run the e-Doctor, the system will prompt you with the window to key-in your ‘user ID’and ‘password’.
20
3. User Registration and Log In
2. Log in
Enter your ‘user ID’ and ‘password’ whenever you run the program.
※ If your password is lost, contact the program manager and get a new passwordand user ID. You have to reinstall the program.
21
4. Operation of e - Doctor
1. Top menu
Menu (M)- Exit : exit the program.
Communication (C)- Start : Start the communication with the machine.- Stop : Stop the communication with the machine.
Preference (P)- COM1 : Select to connect to the COM port #1 of your laptop computer. - COM2 : Select to connect to the COM port #2 of your laptop computer.- USB : Select to connect to the any USB port of your laptop computer.
Help (H) - About : You can see the copyright and version information. - Fault codes : You can see fault information and trouble shooting manual.- Help : You can see the online help for the diagnosis program. (Manual here)
22
4. Operation of e - Doctor
1. Connect / Disconnect ECU
2. Main menu
“Connect ECU” icon- Establishes communication between the e-Doctor and engine ECU
(Communication is activated when the line at the bottom of the screen displays : ‘DL06’ ‘DL08’or ‘DV11’ and ‘Step2 and 3 communicating …’)
- Lets you know which type engine is installed on machine : DL06, DL08 and DV11.
“Dis connect ECU” icon- Turns communication off.※Wait 5 seconds before resuming the communication.
23
4. Operation of e - Doctor
2. Main menu2. Connection setting
COM1 : Instructs the e-Doctor program to communicate with the gateway through the serial port #1 of your laptop computer.
COM2 : Instructs the e-Doctor program to communicate with the gateway through the serial port #2 of your laptop computer.
USB : Instructs the e-Doctor program to communicate with the gateway through any of the “USB ports” of your laptop computer. Makes sure that the process described in the section ‘software installation guide’ sub section ‘USB port driver installation’ is completed properly (otherwise communication by that method will fail).
24
4. Operation of e - Doctor
3. Fault codes
2. Main menu
Displays Engine failure messages with fault code.
Note:All message will remain in the ECU memory until deleted by an e-Doctor user. ‘Active’ error messages can not be deleted.‘Historic’ error messages can be deleted.
25
4. Operation of e - Doctor
3. Fault codes
2. Main menu
26
4. Operation of e - Doctor
Erase fault- Lets the user erase all error data in ECU providing that the status is ‘Historic’.
Save as Excel- Lets the user save the list of errors as an Excel file.
Fault code -Lets you know the fault codes of the engine.
Description- Provides the detail information about each fault code.
Activity- ‘Active’ means that the fault is currently present.- ‘History' means the problems is not currently present.
Help pop up - Click on the fault code line to open the ‘online’ help window.
3. Fault codes
2. Main menu
27
4. Operation of e - Doctor
- Click on the fault code line to open the help window. - You can see the fault detail, cause result & repair recommendations.
3. Fault codes : Help window
2. Main menu
Click
28
4. Operation of e - Doctor
- Click on bit (Trouble causing) to open the trouble shooting manual. - You can see the fault detail, what was problem & hot to check / fix / repair engine recommendations (step by step)
3. Fault codes : Help window
2. Main menu
Click
29
4. Operation of e - Doctor
View service data enables you to check the sensors and service data values of theengine, and check the status of the electric components such as sensor or switches.
4. Service data
2. Main menu
30
4. Operation of e - Doctor
4. Service data
2. Main menu
31
4. Operation of e - Doctor
View Selection - Tick the square cell in the column ‘SEL’ in front of the selected parameter- Only the selected parameters (service data) will be shown on the screen
Open Selection - Opens the list of service data you saved in lap top in a former session
Save Selection- You can save the specified service data which you selected from the full service data list- The filename has a *.sds extension.- To select the service data, proceed in the same way as in “View selection”
Graph- Shows the values for each selected service data as a graph. - You can view up to 10 service data at a time.
Save as excel- The service data names, parameter names, current values and units which are shown are saved as Excel
format. The curves are not saved in the current software version
Data Group - Select the service data you want to see using the fall-down menu.- All data, Start data, injector data, voltage data, fuel pressure data….
4. Service data
2. Main menu
32
4. Operation of e - Doctor
4. Service data (Graph screen)
2. Main menu
33
4. Operation of e - Doctor
Graph - CR : Indicates the line color on the graph. - SVC Data : Indicates the service data names/parameter names shown on the graph.- Value : Indicates the parameter’s current value, shown as Y-coordinate. - Max : Indicates the max. value of the parameter. It is 100% of the graph.- Min : Indicates the min. value of the parameter. It is 0% of the graph. - Time : X-coordinate- Scroll bar : It is active when going over the next frame. - Stop button : Temporarily stops the measurement on the graph.- Exit : Closes the graph window.
4. Service data (Graph screen)
2. Main menu
34
4. Operation of e - Doctor
- If click any cell in the column ‘current value’. A pop up window provides information on the value of the related parameter.
4. Service data (Help pop up)
2. Main menu
35
4. Operation of e - Doctor
The Snapshot enables you to record and display long periods of machine operation
5. Snap shot
2. Main menu
36
4. Operation of e - Doctor
Initialize- The Initialize icon displays the list of all parameters on the screen.
Manual Start- Data can be saved up to 200 seconds (100 seconds before and after starting). - Click the Manual Start icon. The icon will be changed to the ‘Manual Stop’ icon so that you can
control the saving time.
Manual Stop - Click the Manual Stop icon. The button will be revert to the ‘Manual Start’ icon- You can store the data up to a maximum of 200 seconds
(respectively 100 seconds before and after starting). - The filename has a *.snp extension.
Auto Start - Click the Auto Start icon. The system will wait until the machine generates a fault and will then start
to save the fault data.- e-Doctor will save automatically the fault data for 200 seconds before and after fault.
Open - Load and run a stored snapshot file.
Time Frame Scroll - Change the time frame scroll to check the current value of each time.
5. Snap shot
2. Main menu
37
4. Operation of e - Doctor
Data Group - Select the service data you want to see using the fall-down menu.- All data, Start data, injector data, voltage data, fuel pressure data….
View selection - See ‘Service Data’ section. This function behave in the same way
Graph - See ‘Service Data’ section. This function behave in the same way
Save As Excel - The service data names, parameter names, values and units which are shown are saved as an Excel
file
5. Snap shot
2. Main menu
38
4. Operation of e - Doctor
This test allows checking of the power deviation between cylinders.
6. Run up test
2. Main menu
39
4. Operation of e - Doctor
Auto Start icon- Start and idle the engine before clicking the Auto Start icon- The test will be started as soon as you click the start icon- The test will be performed six times automatically- After performing the test six times, the test will automatically be stopped
Manual Start icon- Select the cylinders you want to test.- If the Manual Start icon is clicked, the test is performed only on the selected cylinder
Stop icon- Makes the test stop.
Status message- It enables you to trace the test progress.
Measurement result - Max speed: Indicates the max. RPM of each cylinder during the test. - Min speed: Indicates the min. RPM of each cylinder during the test. - Elapsed time: Indicates the time to reach the max. RPM. from min. RPM
6. Run up test
2. Main menu
40
4. Operation of e - Doctor
The white cells containing: ‘Cyl.#1’ or ‘Cyl.#2’ or … show the engine firing order(DL06/DL08 : 1-5-3-6-2-4, DV11 : 1-4-2-5-3-6)
The first column shows the ‘Elapsed time’ resulting from the operation of cylinders 2 to 6. ‘Cylinder 1’ is turned off. The second column shows similar results but with ‘cylinder 5’ turned off if engine DL08 is checked (‘cylinder 4’ is turned off if engine DV11 is checked).
The height of the six columns is the elapsed time expressed in percent of the longest of the six times recorded.
Should the deviation of any cylinder exceed 20%, a major problem is detected. Any deviation could indicate a minor problem. Typical problems could be: defective fuel spray pattern, no spray at all, scratch of the liner
This result is just for reference value
6. Run up test
2. Main menu
41
4. Operation of e - Doctor
▣ Case study of run up test: one an engine with an injector fault (i.e Cyl. No 2 injector).Press the ‘run up’ test button. The ECU turns No1 injector off and starts investigating engine’s speed (the engine is running with 5 cylinders only). The ECU gives signals to 5 injectors to maintain the engine running speed .The engine speed will be reduced because No 2 injector cannot generate a normal output according to our assumption. The elapsed time will be quite long.
The ECU shall turn No2 injector off afterwards. The engine speed will not be degraded because the damaged injector/cylinder is turned off. The elapsed time will be short.
The ECU shall turn No3 injector off. The engine speed shall be degraded because No 2 injector/cylinder is turned on and contributes to the time calculation again.
This test will be repeated 6 times all together. The shortest elapsed time is assigned to the column where the cylinder is damaged.
6. Run up test
2. Main menu
X1 2 3 4 5 6
42
4. Operation of e - Doctor
This test aims to check the deviation of the compression between cylinders
2. Main menu7. Compression test
43
4. Operation of e - Doctor
7. Compression Test
2. Main menu
Start icon- Make sure that the engine is not running, but the starter Key is in the “On” position.- The test will start after you click the ‘Start’ icon and then start cranking the engine.
Stop icon- Clicking the icon makes the test stop.
Status message - It enable you to trace the test progress.- Always follow the instructions written in the ‘message’ cell
Cranking message - Start cranking when prompted to start. - Stop cranking when prompted to stop.
Understand the graphs: ‘Compression stroke’ & ‘Expansion stroke’- It shows the elapsed time as a percentage the longest measurement time.- The software selects a time base for the compression phase & different one for the expansion phase- Assuming that the compression ratio of a cylinder is lower than the other cylinders the time needed for the compression phase is shorter, and the expansion phase longer.
44
4. Operation of e - Doctor
8. Remote control
Allows test of ECU, by allowing the user to replace the sensor(s) signal(s) with inputs from the laptop.The engine’s response to abnormal signals can be checked by remote control.
2. Main menu
45
4. Operation of e - Doctor
View current value- Shows current value of parameters displayed in the right hand side of the screen
Start remote control - Replaces sensor(s) output(s) to ECU by the user defined laptop signal(s)
Stop remote control- Stop remote control test on engine.
- Choose and remove test data from engine test.
▣ HOW TO OPERATE THE REMOTE CONTROL:
-‘Input Variables’ are the parameters which can be selected to send inputs to the ECU- Select an ‘Input Variable’ and click on to send the input(s) to the right screen side- ‘Output Variables’ are the parameters which outputs from ECU are analysed- Select an ‘Output Variable’ and click on to send the output(s) to the right screen side- Click on ‘View Current Value’ to see the selected parameter(s) current value(s)- Enter values in the column ‘Input’ to assign a value to each selected parameter- Click “Start Remote Control” to see the effect of the selected values- Click “Stop Remote Control” to return to the machines own input values
8. Remote control
2. Main menu
46
4. Operation of e - Doctor
You can record the engine No. and machine ID on the ECU.After Reprogramming an ECU, the engine No. and machine ID are not saved in ECU.The engine No. and machine ID must be saved in the ECU.
9. Register machine ID
2. Main menu
47
4. Operation of e - Doctor
“Select in communication”- View all : Click ‘view all’ icon. You can see the EOL data.
. CUID_D_DSID_CUC : Record engine ID
. CUID_D_VIN_CUC : Record machine ID
- “Apply” : New value is applied (saved) in ECU - “Open selection” : Opens the data item you want to save in laptop.- “Save selection” : Saves the data item you selected.
Open file : Open specified service data and value you saved before. Save file : Save specified service data and value. Save as excel : Save specified service data and value as excel.
Change data value- Tick the EOL data value you want to modify. “√” is shown in the ‘SEL’ column.- Enter the NEW value in the ‘Value’ column and Click “Apply”. The NEW value is
saved in ECU.- Click the ‘Stop’ icon to validate the input and wait a few minutes.- The NEW value is shown on ECU information.
*The engine must be stopped (Key ‘On’ condition), whenever you do ECU reprogramming and Change EOL data.
9. Register machine ID
2. Main menu
48
4. Operation of e - Doctor
V
1. Change value2. Check
3. Click apply
4. Click Yes
5. Click stop
9. Register machine ID
2. Main menu
49
4. Operation of e - Doctor
10. Reprogramming ECU
2. Main menu
50
4. Operation of e - Doctor
10. Reprogramming ECU
2. Main menu
Select Engine - No use
Select file - Select ECU MAP file on your laptop computer for reprogramming or rework- The files are obtained from the Doosan company if required
File transferring. - Install Map file on ECU.- You can see the program installing progress rate
• Install completely (100%): when prompted “install complete” message, click “sure”• You have to wait a few minutes. MAKE SURE THAT THE LAPTOP BATTERY IS FULL• Should the proper transfer of file fail, the ECU will be damaged and should be replaced
otherwise the engine cannot be run anymore.• Click “stop” icon (Start /Stop Icon ), and restart e- Doctor• After restarting the e Doctor, the engine serial No must be entered in the ECU through EOL• It is not possible to re program a DX340 ECU with a DX420 software and so on.
51
4. Operation of e - Doctor
10. Reprogramming ECU
2. Main menu
* Selecting Map file on your laptop * Click “Start” then you can see progress rate
52
4. Operation of e - Doctor
10. Reprogramming ECU
2. Main menu
1. Confirm
2. Stop / Start
* After programming Click “confirm”. You must click Disconnect icon then re start e-Doctor after a few seconds.
53
4. Operation of e - Doctor
11. ECU Information
2. Main menu
You can check that you are performing the test on the correct machine by checking the hardware, software and machine ID of ECU.
54
4. Operation of e - Doctor
10. ECU Information
2. Main menu
VIN- Machine Identification number
Engine Type - Suffix / Engine Number
Last test user - Indicates the ID number of the test user who last modified program data.
S/W Version- Indicates the software version.
Data Set- Indicates the software components.
Programming Date- Indicates the date last modified EOL data.- It will be displayed as blank if the data has never been changed.
Engine Test Date- Indicates the last engine test date.
55
Let’s remember this….
- Never disconnect a communication cable from your lap top computer while making an engine diagnosis.
- If you disconnect the communication cable from your lap top,your laptop shall face a serious trouble.
- If you want to disconnect the cable, you must use below icon to perform “safety remove hardware” or turn off the engine.
56
Laptop Specifications
(1) Minimum Specifications
- CPU : Pentium-II 300MHz
- RAM : 128M
- Video Card : VGA Card with 8M
- HDD : 10GB
(2) Recommended Specifications
- CPU : Pentium-III 3.1GHz
- RAM : 256M
- Video Card : VGA Card with 16M
- HDD : 40GB
57
Appendix
Cut Off Test Using e-Doctor
Overseas P/S TeamConstruction Equipment BG
59
How to detect Fault Injector Using Cut Off Test
if it is fault cylinder
RPM decreases No change in RPM
ECU increase fuel inj. quantity No change in fuel inj. quantity
RPM is compensated
Cut off #1 Cylinder
Normal Fault
You can decide faultiness by observing these value
60
Be aware before Cut-Off Test
During Injector Cut off test, be sure to maintain low idle rpm
After cut off test, be sure to turn off the start key switch, then wait 2~3 sec more, and start it again.(Unless restarting, you can not change RPM with accelerator pedal or throttle.)
After cut off test, Injectors which have no changes in Low Idle Control Quantity should be replacedaccording to procedures for changing injectors.
61
Injector Cut-Off Test Using E-Doctor (1/14)
• Try to check injector condition with cut off test1. Connect your e-Doctor (using gateway) to your machine.
2. Key on and start engine
3. Idling engine at low idle RPM.
4. Run e-Doctor program, and click [Connect ] icon at the left top.
Connect icon is changed to Disconnect icon while showing a message saying ‘E/G MODEL(DL08) STEP3 Communication..’ on the left bottom status bar, which means you successfully have a connection to your machine.
62
Injector Cut-Off Test Using E-Doctor (2/14)
• Try to check injector condition with cut off test5. Go to remote control menu
63
Injector Cut-Off Test Using E-Doctor (3/14)
6. Select ‘‘Switch off Cylinder 1’ in the ‘Input Variables’ list box and click it• Try to check injector condition with cut off test
Switch off cylinder 1 Switch off cylinder 5 Switch off cylinder 3Switch off cylinder 6Switch off cylinder 2Switch off cylinder 4Is not real cylinder No.
It is firing order.
64
Injector Cut-Off Test Using E-Doctor (4/14)
7. Click the right-heading arrow. Related value list will appear on the table. • Try to check injector condition with cut off test
65
Injector Cut-Off Test Using E-Doctor (5/14)
• Try to check injector condition with cut off test8. Select ‘‘Low Idle Control quantity’ in ‘Output Variables’ list box and click it. Click the right-heading Arrow. Related value list will appear in the table.
66
Injector Cut-Off Test Using E-Doctor (6/14)
• Try to check injector condition with cut off test9. When clicking [View Current Value] button, the current parameters are listed in the table.
. Switch off Cyliner 1 : OFF (Which means #1 Injector cut off is not activated)
. Low Idle control quantity : Shows standard quantity at low idle RPM, which is calculated by ECU.
Write down Low Idle Control quantity value on your sheet.
Ex) Idle(750) rpm : 25mg/st
Maintain low idle RPM
67
Injector Cut-Off Test Using E-Doctor (7/14)
10. In the parameters table for Input Variables, click input column and select it to ‘ON’
Maintain low idle RPM
• Try to check injector condition with cut off test
68
Injector Cut-Off Test Using E-Doctor (8/14)
11. Click [Start Remote Control] and click YES on verifying question window.
Now Injection cut off is activated.
YES NO
Maintain low idle RPM
• Try to check injector condition with cut off test
69
Injector Cut-Off Test Using E-Doctor (9/14)
12. Output column of Switch off Cylinder1 changes to ‘ON’ (which means #1 injector is cut off)
Output column of ‘Low idle Control quantity’ shows estimated fuel quantity without #1 injector
Write down Low idle control quantity value on your sheet.
Estimated fuel quantity
Maintain low idle RPM
• Try to check injector condition with cut off test
70
Injector Cut-Off Test Using E-Doctor (10/14)
• Try to check injector condition with cut off test13. <Deciding Faultiness by comparing values>
Compare Low idle control quantity 1 value with the value before cut off (procedure 9).
‘Output’ value of ‘Low idle Control quantity 1’ in Output Table :
1) Increases when normal injector was cut off. (more than 5mg)
2) Has no change when fault injector was cut off. (less than 2mg)
(Refer to below example of changes of normal injectors.)
* Changes of Low idle Control Quantity value at 750 rpm
Model Normal state normal injector is cut off
DL06 18 ±2 mg/str 22 ±2 mg/str
DL08 23 ±2 mg/str 27 ±2 mg/str
DV11 27 ±2 mg/str 33 ±2 mg/str
Above table is a example of change amounts at 750 rpm.
The value can be different depending on machine specs and conditions.
Let’s go to case study….
71
Injector Cut-Off Test Using E-Doctor (11/14)
• Try to check injector condition with cut off test
▣ Case study of cut off test : one an engine with an injector fault (i.e Cyl. No 2 injector is open condition).
Try to cut cylinder #1 off. The ECU turns No1 injector off and starts investigating engine’s speed (the engine is running with 5 cylinders only). Then, the engine speed will be decreased in a moment and recovered immediately because, the ECU gives signals to 5 injectors to maintain set engine running speed by increased fuel injection with 5 cylinders working.
The ECU shall turn No2 injector off afterwards. The engine speed will not be decreased, because the damaged (open) injector/cylinder still generate engine power (Injector open condition : Still generate power)Then, the ECU will not be increased fuel amount with 5 injector.
The ECU shall turn No3 injector off. The engine speed will be decrease by No 3 injector/cylinder is turned off and the ECU will increase fuel amount to maintain set engine running speed with 5 cylinders working
This test will be repeated 6 times all together, then you can catch up the problem injector.
Cylinder No. Before test valve After test valve
Cylinder #1. 18 mg/str 22 mg/str
Cylinder #2. 18 mg/str 19 mg/str
Cylinder #3. 18 mg/str 23 mg/str
Cylinder #4. 18 mg/str 22 mg/str
…… …. …
X#1 #2 #3 #4 #5 #6
72
Injector Cut-Off Test Using E-Doctor (12/14)
14. Click [Stop Remote Control] to finalize cut off test for #1 cylinder.
Maintain low idle RPM
• Try to check injector condition with cut off test
73
Injector Cut-Off Test Using E-Doctor (13/14)
• Try to check injector condition with cut off test15. Delete all items in right table to test other injectors.
(Select item in table and click left-heading arrow to get rid of it.)
SwitchoffCylinder1 is deleted
Click(1)
Click(2)
74
Injector Cut-Off Test Using E-Doctor (14/14)
16. Perform cut off test on other injectors by the firing order. (Cylinder 1 5 3 6 2 4)
(The items in ‘Input Variable’ are also listed in firing order.)
• Try to check injector condition with cut off test
75
END OF DOCUMENT