[MAXRPM]

How do you check the maf with vag-com? I have the cable but I have not been able to get to the graph or the reading window, thanks for your replies in advance.

 

[chittychittybangbang]

Off the top of my head, I believe that you can go to advanced measuring blocks under "engine" and you can select a box marked maf. From there there's an option to datalog graph it.

Edit:

http://www.ross-tech.com/vag-com/cars/tdi.html

Air system part I: MAF

• Go into Engine measuring block 003
• Start Logging data
• In a high gear (4th/5th), give full throttle from 2500 rpm up to 3500rpm.
• Find and Open the Log file in Windows Explorer
• Graph MAF actual -vs- rpm in Excel
• The MAF is OK if the actual value is at least 850-900 mg/h at 3000 rpm.

 

[Blackcat]

How do you use excel to graph the data logs?

 

[grizzly]

If you have vag com from ross tech it comes with vag scope, a program that puts the logs into graph format.

 

[MAXRPM]

If you have vag com from ross tech it comes with vag scope, a program that puts the logs into graph format.

Yes, my vag.com is from Ross tech, so I am going to mess around to see if I can see the graph.

 

[xmachineheadx]

Is the ebay vag-com any good? How come it's much cheaper?

 

[chittychittybangbang]

Is the ebay vag-com any good? How come it's much cheaper?

It's fine if you want to check the timing, it's not good for much else. There are a lot of other functions that the real "ross tech" vag com can do, I recommend that.

 

[xmachineheadx]

Thanks, I was wondering why it was so cheap.