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Model specific boards => Golf mk4 => Topic started by: Voodoo-Music on 17 April 2009, 17:31

Title: How to do vag com runs
Post by: Voodoo-Music on 17 April 2009, 17:31
I needto find out whats going on with the car as you have all read by now the vacuum is reading down along with the boost pressure but the car feels ok apart from the idle problem.

How do i use vag com to take a reading what my car is doing with the maf, pressure etc and what am i looking for, i dont have a registered version of the software by the way

Title: Re: How to do vag com runs
Post by: richw911 on 17 April 2009, 17:41
http://www.audizine.com/forum/showthread.php?t=115366  :smiley:
Title: Re: How to do vag com runs
Post by: Voodoo-Music on 17 April 2009, 17:50
ah you getting close to being the link master lol

cheers rich
Title: Re: How to do vag com runs
Post by: Steve_PD on 17 April 2009, 18:26
If you want to log boost (I assume you do after reading about N75 problems) log group "011", MAF is "003"  :wink:
Title: Re: How to do vag com runs
Post by: Voodoo-Music on 17 April 2009, 18:39
is it 115 to check boost or is that charge control. I need to check boost and vacuum
Title: Re: How to do vag com runs
Post by: Steve_PD on 17 April 2009, 18:48
your limited with what you can log with the freeware version, you cant log 115, you can log intake pressure which is 011
Title: Re: How to do vag com runs
Post by: Rhyso on 17 April 2009, 21:04
AGU you can't log boost i believe due to the lack of a MAP sensor
Title: Re: How to do vag com runs
Post by: Voodoo-Music on 20 April 2009, 16:21
Got my full version of vag com and tried to read blocks 113 but it said its a invalid block ? why would it do that
Title: Re: How to do vag com runs
Post by: Rhyso on 20 April 2009, 16:23
Got my full version of vag com and tried to read blocks 113 but it said its a invalid block ? why would it do that

its 115 isn't it

unfortunately still no good if its an AGU as you can't log boost

also not all the blocks are used - thing to do is log one and the click through them all until you get to the one you want
Title: Re: How to do vag com runs
Post by: Voodoo-Music on 20 April 2009, 18:31
i did a run on the charge pressure control and the readings are this, this was a third gear foot to the floor up to the redline

Monday   20   April   2009   18:03:28                  
06A 906 018 CG      1.8L R4/5VT MOTR HS D02                        
                              
   Group A:   '025            Group B:    Not Running         
      Spec. load   Load correc.   Actual load   Valve cycle               
   TIME   3-8 m/s   0-8 m/s   0.5-8 m/s   0-99%   TIME            
Marker   STAMP    ms    ms    ms    %   STAMP            
   0   5.95   5.75   5.85   28.9               
   0.38   6.1   5.9   5.9   32               
   0.77   6.15   6.05   6   34               
   1.14   6.05   6.1   6   34.8               
   1.52   5.75   5.85   5.7   29.3               
   1.89   8.2   6.1   6   69.9               
   2.27   9.4   8.95   8.75   77.7               
   2.66   9.25   9.25   8.7   79.7               
   3.02   9.15   9.2   8.85   80.9               
   3.41   9.05   9.05   9   81.6               
   3.78   8.95   8.95   9   82.4               
   4.14   8.8   8.85   8.85   82               
   4.53   8.75   8.75   8.7   80.9               
   4.91   8.65   8.65   8.65   84               
   5.28   8.5   8.55   8.6   83.2               
   5.66   8.45   8.45   8.5   82.4               
   6.05   8.35   8.35   8.3   82.4               
   6.41   8.25   8.25   8.3   81.3               
   6.8   8.25   8.2   8.2   82.4               
   7.18   8.15   8.15   8.2   82.4               
   7.57   8.1   8.1   8.15   81.3               
   7.93   8   8   8.1   80.5               
   8.3   7.95   7.95   7.95   79.7               
   8.69   7.85   7.85   7.95   78.5               
   9.07   7.75   7.75   7.8   77.3               
   9.47   7.65   7.65   7.7   76.2               
   9.84   7.6   7.55   7.55   75.8               
   10.22   7.55   7.5   7.55   75.4               
   10.59   7.45   7.45   7.45   74.6               
   10.97   7.35   7.35   7.4   73.8               
   11.34   7.3   7.25   7.35   73.4               
   11.73   7.2   7.2   7.2   71.9               
   12.11   7.15   7.15   7.15   71.1               
   12.51   7.1   7.05   7.1   70.3               
   12.89   3.05   7.05   1.2   0               
   13.28   8.45   7.6   8   77.3               
   13.66   8.45   8.35   8.3   79.3               
   14.05   7.75   8.15   8.15   68.8               
   14.41   3.45   7.25   5.15   0               
   14.81   3.6   7.25   1.7   0               
   15.18   3.95   7.25   0.75   0               
   15.57   4   7.25   0.7   0               
   15.93   4.05   7.25   0.7   0               
   16.32   4.05   7.25   0.65   0               
   16.72   4.1   7.25   0.65   0               
   17.08   4.1   7.25   0.65   0               
   17.47   4.15   7.25   0.65   0               
   17.84   4.15   7.25   0.65   0               
   18.22   4.2   7.25   0.65   0               
   18.6   4.2   7.25   0.65   0               
   18.99   4.25   7.25   0.65   0               
   19.36   4.25   7.25   0.65   0               
   19.74   4.3   7.25   0.65   0               
   20.12   4.3   7.25   0.65   0               
   20.51   4.35   7.25   0.65   0               
   20.89   4.35   7.25   0.65   0               
Title: Re: How to do vag com runs
Post by: T_J_G on 20 April 2009, 19:09
Put those figures into an excel format table. They'll be easier to read!

I think you have to compare the specified with the actual amount and yours start together and then they fall off.

From here (difference between second and 4th column):

12.89   3.05   7.05   1.2   0               
13.28   8.45   7.6   8   77.3               
13.66   8.45   8.35   8.3   79.3               
14.05   7.75   8.15   8.15   68.8               
14.41   3.45   7.25   5.15   0               
   14.81   3.6   7.25   1.7   0               
   15.18   3.95   7.25   0.75   0               
   15.57   4   7.25   0.7   0               
   15.93   4.05   7.25   0.7   0               
   16.32   4.05   7.25   0.65   0               
   16.72   4.1   7.25   0.65   0               
   17.08   4.1   7.25   0.65   0               
   17.47   4.15   7.25   0.65   0               
   17.84   4.15   7.25   0.65   0               
   18.22   4.2   7.25   0.65   0               
   18.6   4.2   7.25   0.65   0               
   18.99   4.25   7.25   0.65   0               
   19.36   4.25   7.25   0.65   0               
   19.74   4.3   7.25   0.65   0               
   20.12   4.3   7.25   0.65   0               
   20.51   4.35   7.25   0.65   0               
   20.89   4.35   7.25   0.65   0