VAG-COM Logging

[noone]

409 for mine, if your using the USB type, Think you need the next one up.

Have you connected to your car? Can you scan codes? If not, you still may need to be working on the drivers...

[vwthunder]

I have scaned it and cleared all the codes

Still trying to work out the logging

Some of the things look different on the screen on the version i am using

I am using the 908

[vwthunder]

Ch 115 only gave me this

09:55:09 Group 115
720 /min RPM
20.3 % Load
1010.0 mbar Absolute Pres.
1010.0 mbar Absolute Pres.

09:55:09 Group 115
760 /min RPM
20.3 % Load
1010.0 mbar Absolute Pres.
1010.0 mbar Absolute Pres.

[noone]

yeah... thats what you want... then you need to log it as you drive...
This records the same info, but over time, then you can graph it!

[RoSonic]

I've installed the FORGE TIP and made some more logging:

so here's boost before and after the tip

BLUE - before the TIP
ORANGE - after the TIP


So, with the TIP only the requested boost seems to be higher all over the rev range

[RoSonic]

And here's an AFR graph in 2nd gear:
(made with the afr example from ross-tech page - Ross-Tech: VAG-COM: Diagnostic Procedures)



And a graph with air mass / inj period / load made with the same values used in the afr graph:




How does this look ?

[vwthunder]

Did a log again in 2nd gear all it gives me is this

Shouldnt it give me more info, it should be recording

Can anyone show me what the data should look like after taking a boost log of a certain gear


Address 01: Engine (06A 906 032 TL)

09:48:32 Group 115
760 /min RPM
18.8 % Load
1010.0 mbar Absolute Pres.
1010.0 mbar Absolute Pres.

[Tim]

your data should be in the form of a .csv file.
That looks like just a snapshot at idle

[noone]

does not seem like you are logging, just looking at data...

You should be exporting a file (.csv).

You need to go into Meas. Blocks, select your blocks so you can see the data live, select log, it will open up a little window for the file location, give it a file name (pref on the desktop), select Start. Do your runs, then select Stop. This is based on the 409 Software, but should be pretty similar.

What you get is a spreadsheet with lines of data which are time seperated, then you can make a chart with this info.

[vwthunder]

Thanks guys found some logs in some of the files

Info looks messy, not consistant

Trying to work out how to graph it as I havent used excel before

Data looks all over the place as i did it is 2nd gear

Might need to get a good log in 3rd