2.8 V6 VCDS channels?

Newbie Joined: Feb 22, 2011 Posts: 11 Location: Sweden

Hello

I have a 2.8 V6 engine. Does anyone know what all the channels in single-reading (for ex.) stands for?

001 ?
002 ?
003 ?

and so on....

Glad for help!

Posted: Mon Feb 28, 2011 11:34 am

If you have VCDS the lable file will tell you as you look at them...

Newbie Joined: Feb 22, 2011 Posts: 11 Location: Sweden

Well it doesn't tell me anything.. Just a value..

Posted: Mon Feb 28, 2011 12:41 pm

This the free/un-licened version? You should have all the info labled up similar to this : http://www.ross-tech.com/vcds/tour/m-blocks.html

Newbie Joined: Feb 22, 2011 Posts: 11 Location: Sweden

I have like this:

http://www.ross-tech.com/vcds/tour/screens/measblocks000.png

But not the others..

In single-reading I have groups up to 010 without description.

In the meassuring block I have group 000 only, WITH values.. but no description, like the picture..

I Imagine its because of the model of the car?.. MS200 ECU

Posted: Mon Feb 28, 2011 12:50 pm

So it shows a valid label file then? but no labels....run it past ross-tech then....i'd have thought that had these older ones mapped out fully by now, but maybe not in this case....they can get you to collect the data and then create one if it is missing. I did this for my A4 with them a few years back for my particular car mix...it now forms part of the standard lable files for all to use.

If you dont use single block does it show...

Newbie Joined: Feb 22, 2011 Posts: 11 Location: Sweden

I know for sure there is no description for the different channels for my ECU.. they also say that on ross-techs home-page that you have to check the repair manual..

Since I aint got It I asked here if anyone knows Smile

Someone here must have figured it out I thought .. but maybe not hehe..

Posted: Mon Feb 28, 2011 12:54 pm

I'd still ask them...there may be a file now...or they will help write one Wink

Newbie Joined: Mar 07, 2011 Posts: 10

tell mi what exactly is the car and i will check in ELSA info.

Newbie Joined: Feb 22, 2011 Posts: 11 Location: Sweden

Audi Coupé Quattro 2.8 V6 12v
Motorcode: AAH
from 1993
MS200 ecu

thanks Smile

Newbie Joined: Mar 07, 2011 Posts: 10

is this your ecu number 8a0 906 266b? for this unit i will tell you about reading measuring blocks from 000 to 010 . and from 011 to 019. this is for the same year audi AAH engine but not for coupe ,because for audi coupe the selection is blocked Sad

the reason missing... and i can tell you about previous ECU the meanings of reading individual measuring blocks. diferents between first and second ECU is the simbol A or B at the end of the number. May be i can help you? My opinion is that the values in diferent ECUs is almost same.

Newbie Joined: Feb 22, 2011 Posts: 11 Location: Sweden

I dont know my ECU number... but yes maybe thats the same A or B?? post the ones you got? : ) thanks

Newbie Joined: Mar 07, 2011 Posts: 10

read individual measuring blocks- 00 Lambda control factor - bank1 (connector detached from ACF valve)

01
Lambda control factor - bank2 (connector detached from ACF valve)

02
Lambda probe 1 signal voltage

03
Lambda probe 2 signal voltage

04
Injection period, cylinder 1 ... 3

05
Air mass meter discrepancy

06
Duty cycle (actuation) of ACF system solenoid valve 1 -N80

07
Duty cycle (actuation) of idling stabilisation valve -N71

08
Current regulation for idling stabilisation valve -N71

09
Throttle valve angle

10
EGR temperature (EGR temperature sensor -G98)

11
Signal voltage of throttle valve potentiometer -G69

12
Ignition timing map switching

13
Ignition timing for all cylinders

14
Engine control unit power supply voltage

15
Vehicle speed

Newbie Joined: Mar 07, 2011 Posts: 10

00
120 ... 136

- Adjust CO =>Page24-24

01
(mean value 128)

02
less than 30 or
Less than 0.3 V or
- Interrogate fault memory =>Page 24-83

03
higher than 60
Greater than 0.6 V
- Checking wiring
=> "Current Flow Diagrams, Electrical Fault Finding and Fitting Locations" binder

04
0 ... 255
0.128 ... 32.640 ms
For function check only

05
0 ... 4
0.00 ... 0.04 V
- Checking earth supply for air mass meter -G70
=> "Current Flow Diagrams, Electrical Fault Finding and Fitting Locations" binder

06
0 ... 255
0 ... 100 %
- Checking -N80 solenoid valve 1 for the activated carbon canister =>Page 24-97

Channel number
Specification
Corresponds to
Measures in the event of deviation

07
0 ... 255
(mean value 128)
0 ... 74 %
- Checking idling stabilisation valve -N71 => Page 24-52

08
-
-
- Internal control unit computed value

09
0 1) ...
greater than 175 2)
0 1)...
greater than 71o 2)
- Checking throttle valve potentiometer -G69 => Page 24-103

10
...
... oC
- Checking EGR temperature sensor -G98 => Page 24-121

11
12 ... 25
(mean value 19)
0.24 ... 0.5 V
(mean value 0.38 V)
- Checking throttle valve potentiometer -G69 and adjust if necessary => Page 24-103

12
Lower than 128

1st map = basic map

Greater than 128

2nd map = map with reduced ignition timing
2nd map is selected in the event of:
- Poor fuel grade (less than 95 RON)
- Abnormal engine running noise (ancillaries loose)
- Engine damage (oil combustion caused by defective piston)

1) at idling speed.

2) for brief full throttle actuation.

Channel number
Specification
Corresponds to
Measures in the event of deviation

13
...
... ocrankshaft
(x 1.333)
Digital idling stabilisation is only active when the idling switch is closed
The knock control is active above an engine load of 40%

14
132 ... 182
10.56 ... 14.56 V
- Checking voltage supply to engine control unit => Page 28-31

15
...
... km/h
- Checking vehicle speed sender -G22/-G68 => Page 24-140

Newbie Joined: Mar 07, 2011 Posts: 10

Read measured value block 0
⇒
◂ Indicated on display

1
2
3
4
5
6
7
8
9
10
◂ Display zones
Specification
Corresponds to

10 Learned value for throttle valve potentiom.
50...100
250...500 mV

9 Lambda learning demand
0 = Learning demand at idling speed and part throttle range
3 = Learning process completed at idling speed
3

8 Lambda control value (mean value 128/cyl. 1...3)
0 is displayed for vehicles with no lambda probes
120...136

7Switching inputs
...

6 Idling stabilisation feedback (mean value 128)
126...130

5 Learned value for idling stabilisation, automatic gearbox with gear engaged (0 is displayed for manual gearbox)
0...10 or
236...255

4 Learned value for idling stabilisation, manual gearbox in idling position, automatic gearbox in selector lever position P or N
0...14 or
240...255

3 Engine speed
28...32
700...800 rpm

2 chanelAir mass meter output voltage
147...162
1,47...1,62 V

01chanel Coolant temperature
135...160
85...11

Newbie Joined: Mar 07, 2011 Posts: 10

Display Group 001; basic function

Reading measured value block 1
⇒
◂ Indicated on display

... °C
... V
... V
... V

Engine control unit voltage supply
▪ 12,0 ... 14.0 V OK

Air mass meter discrepancy
▪ 0,000 ... 0.025 V

Air mass meter output voltage
▪ 1,470 ... 1.620 V OK (for new engines, max. 1.680 V)
▪ In the event of engine speed increase, display value rises to 2.500 V, drops to 0.000 V and starts rising again.

Coolant temperature
▪ 85 ... 110 °C ok

Display group 002, throttle valve potentiometer:

Reading measured value block 2
⇒
◂ Indicated on display

... V
... V
... V
0

Idling switch
▪ 0 = open
▪ 1 = closed

Learned value for throttle valve potentiometer
▪ 0,250 ... 0.500 V OK

Throttle valve potentiometer voltage (idling speed to part throttle range)
▪ 0.250 ... 1.275 V OK

Throttle valve potentiometer voltage (idling speed to full throttle range)
▪ 0.250 ... 4.750 V OK

Display Group 003; basic function

Reading measured value block 3
⇒
◂ Indicated on display

...rpm
... %
... %
... km/h

Vehicle speed

Throttle valve angle:
▪ Idling: 0 % OK
▪ Full throttle: Greater than 95 % OK

Engine load (idling speed)
▪ 15,0 ... 32.0 % OK

Engine speed (idling speed)
▪ 700 ... 800 rpm OK

Display group 004: Idling speed stabilisation:

Reading measured value block 4

◂ Indicated on display

1
4
0

0
0
1

1

X

X

X

X

▪ Fresh-air blower for air conditioner: 0 = high, 1 = low
▪ Air conditioner compressor: 0 = off, 1 = on
▪ Idling switch: 0 = open, 1 = closed
▪ Gear recognition signal: 1 = manual gearbox or automatic gearbox in selector lever position "P" or "N"
▪ 0 = automatic gearbox in selector lever position R, D, 3, 2, 1

Idling stabilisation learned value for automatic gearbox (AT)
▪ In selector lever position D, 3, 2, 1 or R +10 ... -20 OK
▪ Display always 0 for manual gearbox (MT)

Learned value for idling stabilisation
▪ For manual gearbox (MT) in idling position +14 ... -16 OK
▪ (new engines +20 ... -16)
▪ For automatic gearbox (AT) in selector lever position "P" or "N" +10 ... -20 OK
▪ (new engines +16 ... -20)

Idling control at idle
▪ 0 ± 2 OK

Notes on display zones 2 and 3:

Display group 005, lambda learned values, cylinder bank 1:

Reading measured value block 5
⇒
◂ Indicated on display

... %
... %
... %
... %

Lambda learned value, part throttle 3 (bank 1)
▪ -19 % ... +19 % OK

Lambda learned value, part throttle 2 (bank 1)
▪ -19 % ... +19 % OK

Lambda learned value, part throttle 1 (bank 1)
▪ -19 % ... +19 % OK

Lambda learned value, idling speed (bank 1)
▪ -25 % ... +25 % OK

Display group 006, lambda learned values, cylinder bank 2:

Reading measured value block 6
⇒
◂ Indicated on display

... %
... %
... %
... %

Lambda learned value, part throttle 3 (bank 2)
▪ -19 % ... +19 % OK

Lambda learned value, part throttle 2 (bank 2)
▪ -19 % ... +19 % OK

Lambda learned value, part throttle 1 (bank 2)
▪ -19 % ... +19 % OK

Lambda learned value, idling speed (bank 2)
▪ -25 % ... +25 % OK

Display group 007, lambda control, cylinder bank 1:

Reading measured value block 7
⇒
◂ Indicated on display

... %
... %

X
X
X
X

XXXXXXXX

Lambda learning demand display (bank 1); significance =>Page 01-137

X

X

X

X

Lambda learning range display (bank 1)
▪ Part throttle 3:0 = engine speed and load for this learning range not attained
▪ 1 = engine speed and load for this learning range attained
▪ Part throttle 2:0 = engine speed and load for this learning range not attained
▪ 1 = engine speed and load for this learning range attained
▪ Part throttle 1:0 = engine speed and load for this learning range not attained
▪ 1 = engine speed and load for this learning range attained
▪ Idling speed:0 = engine speed for this learning range not attained
▪ 1 = engine speed for this learning range attained

Instantaneous lambda learned value (bank 1)

Lambda control (bank 1)
▪ 0,0 ± 6.0 % OK 1)

Display group 008, lambda control, cylinder bank 2:

Reading measured value block 8
⇒
◂ Indicated on display

... %
... %

X
X
X
X

XXXXXXXX

Lambda learning demand display (bank 2); significance =>Page 01-137

X

X

X

X

Lambda learning range display (bank 2)
▪ Part throttle 3:0 = engine speed and load for this learning range not attained
▪ 1 = engine speed and load for this learning range attained
▪ Part throttle 2:0 = engine speed and load for this learning range not attained
▪ 1 = engine speed and load for this learning range attained
▪ Part throttle 1:0 = engine speed and load for this learning range not attained
▪ 1 = engine speed and load for this learning range attained
▪ Idling speed:0 = engine speed for this learning range not attained
▪ 1 = engine speed for this learning range attained

Instantaneous lambda learned value (bank 2)

Lambda control (bank 2)
▪ 0.0 ± 6.0 % OK 1)

Display group 009, lambda control:

Reading measured value block 9
⇒
◂ Indicated on display

... %
... %
... %
... %

Throttle valve angle => Display group 003, display zone 3

Duty cycle (actuation) of ACF solenoid valve 1 -N80
▪ 0 ... 99 % OK

Lambda control (bank 2) => Display group 008, display zone 1

Lambda control (bank 1) => Display group 007, display zone 1

Display group 010: Lambda control, lambda probe voltage signal:

Reading measured value block 10
⇒
◂ Indicated on display

... %
... %
... V
... V

Voltage signal: Bank 2, lambda probe 1
▪ Intermittently greater than 0.6 V/less than 0.3 B OK (display must fluctuate)

Voltage signal: Bank 1, lambda probe 1
▪ Intermittently greater than 0.6 V/less than 0.3 B OK (display must fluctuate)

Sum total of lambda control (bank 2) and instantaneous lambda learned value (bank 2)
▪ Difference between display values 1 and 2 less than 8 % OK

Sum total of lambda control (bank 1) and instantaneous lambda learned value (bank 1)
▪ Difference between display values 1 and 2 l

Newbie Joined: Feb 22, 2011 Posts: 11 Location: Sweden

Thanks for that .. but its a little unclear whats what Wink

Newbie Joined: Mar 07, 2011 Posts: 10

yes i know . but for me is very dificult to write all this information and i do it with copy and paste. if you have any questions i will try to answer you. and what exactly is the problem with this car?

Newbie Joined: Feb 22, 2011 Posts: 11 Location: Sweden

Oki, where do you get the info from?

It's no problem with the car right now.. but I just got the vcds cable and I would like to know what I can read except error codes with it Smile

Newbie Joined: Mar 07, 2011 Posts: 10

i have a lot of original workshop manuals bentley,elsa etc. http://store.ross-tech.com/shop/cat/BCD.html