Embedded Files
This is a guide to making an engine data log using VCDS.
This is the method you want to use if you want to log specific engine measuring blocks.
Don't use this method to log ALL engine measuring blocks. (See: How to log all engine measuring blocks)
If you make your own "at idle" log, make sure the engine has run for at least 10 minutes and complete the log as quick as possible. (Some functions such as EGR change how they work if the car idles for too long, which can be confusing)
Assuming that your machinine is plugged in and the car ignition is on, the first screen looks like this:
Start the engine now
Click select to take you to the control module screen.
This screen shows all the control modules in your car.
Click 01 Engine to go to the engine control unit.
This is the engine control unit screen.
Click Meas Blocks -08. This will take you to the measuring block screen which will display THREE measuring blocks (e.g. Group 001) as shown below.
You can use the UP and DOWN buttons to change the Group.
Set the first group to 001, second group to 002 and third group to 003.
Click "add to log" button.
Now reset groups to 004, 005 and 006.
Click "add to log" button.
Now reset groups to 007, 008 and 009.
Click "add to log" button.
Keep changing the group numbers and clicking add to log. You will see that some measuring blocks (groups) have no useful data so don't log those.
When you have finished. Close everything down and look in the VCDS file on the laptop. You will have a folder called logs with dates. This is a notepad file (.txt). You can re-save this as an excel (.xls) file if you wish.
The following is a log I saved.
I have edited it to take out groups with no real data or text that doesn't help.
The engine has no known faults so the log can be used as a guide for a healthy engine.
Thursday,29,July,2010,11:34
VCDS Version: Release 10.6.0
Data version: 20100630
Address 01: Engine (03G 906 021 DP)
Group 001: Injection Quantity
819 /min Engine Speed (G28)
5.8 mg/str Injection Quantity
7.1°KW Injection Duration (specified)
75.6°C Coolant Temperature (G62)
Group 002: Idle Speed
819 /min Engine Speed (G28)
0.0 % Accel. Pedal Pos. Sensor 1 (G79)
0 01 0 Operation Status
75.6°C Coolant Temperature (G62)
Group 003: Exhaust Gas Recirculation (EGR)
819 /min Engine Speed (G28)
240.0 mg/str Exhaust Gas Recirculat. (spec.)
430.0 mg/str Exhaust Gas Recirculat. (actual)
95.5 % Exhaust Gas Recirc. Duty Cycle
Group 004: Pump-Jet Valves
819 /min Engine Speed (G28)
0.0 °BTDC Injection Start (specified)
7.1°KW Injection Duration (specified)
-0.5°KW Torsion Value
Group 005: Start Conditions (last Engine Start)
819 /min Engine Speed (G28)
13.5 mg/str Start Injection Quantity
48.0 Start Synchronisation
75.6°C Coolant Temperature (G62)
Group 006: Cruise Control System (CCS)
0.0 km/h Vehicle Speed (actual)
11000000 Pedal Monitoring
0.0 % Accel. Pedal Pos. Sensor 1 (G79)
00000000 Switch Monitoring
Group 007: Temperatures
59.4°C Fuel Temperature (G81)
39.6°C Intake Air Temperature (G72)
75.6°C Coolant Temperature (G62)
Group 008: Injection Quantity Limitation I (Torque Limitation)
819 /min Engine Speed (G28)
0.0 Nm Torque Request (Driver)
168.4 Nm Torque Limitation
153.7 Nm Smoke Limitation
Group 009: Injection Quantity Limitation II (Torque Limitation)
819 /min Engine Speed (G28)
-1280.0 Nm Torque Request (Cruise Control)
500.2 Nm Transmission Limitiation
153.7 Nm Torque Restriction
Group 010: Charge Pressure Control
430.0 mg/str Mass Air Flow (actual)
999.6 mbar Atmospheric Pressure
1030.2 mbar Boost Pressure (actual)
0.0 % Accel. Pedal Pos. Sensor 1 (G79)
Group 011: Charge Pressure Control
819 /min Engine Speed (G28)
1091.4 mbar Boost Pressure (specified)
1030.2 mbar Boost Pressure (actual)
80.1 % Charge Pressure Control Duty Cycle
Group 012: Glow Plugs
11111111 Glow Status
0.00 s Pre-Glow Period
14.44 V Supply Voltage (Terminal 30)
76.5°C Coolant Temperature (G62)
Group 013: Idle Stabilization (Injection Quantity Deviation)
-0.42 mg/str Injection Quantity Deviation Cyl. 1
-0.52 mg/str Injection Quantity Deviation Cyl. 2
0.71 mg/str Injection Quantity Deviation Cyl. 3
0.21 mg/str Injection Quantity Deviation Cyl. 4
Group 015: Fuel Consumption
819 /min Engine Speed (G28)
39.0 Nm Engine Torque
0.60 l/h Fuel Consumption
0.0 Nm Torque Request (Driver)
Group 016: Auxiliary Heating
31.4 % Generator Load
14.36 V Supply Voltage (Terminal 30)
Group 017: Readiness Code (EOBD)
00000000 CARB Mode 01 DATA A
00000110 CARB Mode 01 DATA B
10000000 CARB Mode 01 DATA C
00000000 CARB Mode 01 DATA D
Group 018: Injector Status
0.0 Injector Status Cylinder 1
0.0 Injector Status Cylinder 2
0.0 Injector Status Cylinder 3
0.0 Injector Status Cylinder 4
Group 020: Injection Quantity Limitation (from ABS)
819 /min Engine Speed (G28)
39.0 Nm Engine Torque
1270.0 Nm ASR Limitation
-1280.0 Nm MSR Limitation
Group 021: CAN-Databus Status (Powertrain)
00000000 Engine Electronics
Transmission Electronics
00000000 Brake Electronics
00000100 Brake Electronics (ESP)
Group 022: Shut-Off Status
0.0 Shut-Off Status Cruise Control
0.0 Switch Monitoring Cruise Control
0.0 Shut-Off Status Charge Pressure
0.0 Shut-Off Status Climate Control
Group 023: Injector Switch Time Deviation
-19.0 Switch Time Deviat. Cylinder 1
-24.0 Switch Time Deviat. Cylinder 2
-11.0 Switch Time Deviat. Cylinder 3
-11.0 Switch Time Deviat. Cylinder 4
Group 025
840 /min Engine Speed (G28)
4.0 (no units)
1.0 (no units)
Group 028: Accelerator Pedal Position Sensor
0.760 V Accel. Pedal Pos. Sensor 1 (G79)
0.380 V Accel. Pedal Pos. Sensor 2 (G185)
0 01 0 Operation Status
0.0 % Accel. Pedal Pos. Sensor 1 (G79)
Group 029: Temperature and Oil Level Sensor (TOG)
72.0°C Oil Temperature
30.0 mm Oil Level
9.0 Wear Index
21.0 Soot Index
Group 039
819 /min RPM
5.8 mg/str Inj. Quantity
0.00 mg/str Inj. Quantity
00000010 Bin. Bits
Group 040
819 /min RPM
5.8 mg/str Inj. Quantity
Group 041
100.6 % Duty Cycle
4.8 % Duty Cycle
101.6 % Duty Cycle
94.8 % Duty Cycle
Group 042
0.0 % Lambda
00000000 Bin. Bits
100.6 % Duty Cycle
101.6 % Duty Cycle
Group 044
819 /min RPM
440.0 mg/str Mass Air / Rev.
1 Bin. Bits
Group 045
969.0 mbar Absolute Pres.
11.38 g/s Mass Flow
1030.2 mbar Absolute Pres.
Group 046
100.6 % Duty Cycle
0.0 % Duty Cycle
99.8 % Duty Cycle
95.9 % Duty Cycle
Group 047
0.0 % Lambda
0.0 % Lambda
95.9 % Duty Cycle
99.8 % Duty Cycle
Group 050
819 /min RPM
5.8 mg/str Inj. Quantity
0.00 mg/str Inj. Quantity
00000010 Bin. Bits
Group 051: Engine Speed Recognition
819 /min Engine Speed
399 /min Camshaft Speed
48.0 Start Synchronisation
01010000 Shut-Off Status Injection Sequence
Group 055
0.0 (no units)
0.0 (no units)
00100000 Bin. Bits
00100000 Bin. Bits
Group 056
00100000 Bin. Bits
00100000 Bin. Bits
00100000 Bin. Bits
0xFF00 Hex Value
Group 062: Engine Cooling (Temperatures)
80.1°C Coolant Temperat. Engine Output
34.2°C Coolant Temperat. Cooler Output
18.0°C Ambient Temperature
40.5°C Intake Air Temperature
Group 063: Engine Cooling (Climate Control)
7.16 bar Refrigerant Pressure
0.0 Nm Load Torque
Cooling Request
0.0 Shut-Off Status Climate Control
Group 064: Engine Cooling
80.1°C Coolant Temperature (G62)
34.2°C Coolant Temperat. Cooler Output
10.1 % Coolant Fan 1 Duty Cycle
Group 082: Advanced Control Module Identification III
0000000000000 <> 78 01JJ 79 <>
Group 086: EOBD
11010000 Bin. Bits
11111110 Bin. Bits
10011111 Bin. Bits
11111111 Bin. Bits
Group 087: EOBD
11111111 Bin. Bits
11111111 Bin. Bits
11001111 Bin. Bits
Group 089
00000000 Bin. Bits
00000110 Bin. Bits
10000000 Bin. Bits
00000000 Bin. Bits
Group 090: EOBD/OBD-2 Exhaust Gas Recirculation (EGR) I
819 /min Engine Speed (G28)
5.8 mg/str Injection Quantity
240.0 mg/str Exhaust Gas Recirculat. (spec.)
00000000 Status Control Deviation
Group 091
323.85 (no units)
-326.40 (no units)
240.0 mg/str Mass Air / Rev.
-201.45 (no units)
Group 093
00000000 Bin. Bits
0.93 (no units)
11.38 g/s Mass Flow
11.38 g/s Mass Flow
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