VAG Dual MAF Block. For those that wanted to know and someone would not share
12-04-2002, 06:58 PM
#1
AudiWorld Expert
Thread Starter
VAG Dual MAF Block. For those that wanted to know and someone would not share
Not sure what the F$CK the attitude about not posting information is all about. Trying to sell it or something? Be the only one etc.. Whatever..
The block appears to be 211 on your VAG.
There are 2 MAF G/S readings and they definately show different values, maybe a good test to see if you have a dirty filter or something, who knows!
Tory
The block appears to be 211 on your VAG.
There are 2 MAF G/S readings and they definately show different values, maybe a good test to see if you have a dirty filter or something, who knows!
Tory
12-04-2002, 07:55 PM
#3
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I think its 211 not 221...
Who knew and didn't share? I read about it on the VAG-COM newsgroup. Didn't realize it was a big secret.
The first field is the actual MAF value and the second is the calculated expected MAF value (or I may have those backwards... not sure).
I did some testing on an A4 with a bad MAF and the difference between the two values was dramatic. Once the MAF was replaced, the values agreed to within a few percent.
-Dave Pramanik
The first field is the actual MAF value and the second is the calculated expected MAF value (or I may have those backwards... not sure).
I did some testing on an A4 with a bad MAF and the difference between the two values was dramatic. Once the MAF was replaced, the values agreed to within a few percent.
-Dave Pramanik
12-04-2002, 08:38 PM
#4
AudiWorld Expert
Thread Starter
Yes corrected thank you, posted too quick! Was someone on here a couple of weeks ago
I think the first is spec'd and the second actual. Well Since my numbers show the left column higher then the right (an assumption about which is spec'd vs actual)
12-04-2002, 09:49 PM
#6
AudiWorld Super User
Yup, specified is usually before actual in the measure blocks that have both.
115 and 120 are examples so I think your assumption is right. Only in the 50-56 blocks does actual RPM appear before specified RPM I think those blocks have to do with engine RPM compensation when the A/C compressor kicks on.
Thanks for the information, the blocks passed like 170 don't seem to be well documented, but I am trying to keep track best as I can.
<img src="http://pictureposter.audiworld.com/14154/vagdb.jpg">
Thanks for the information, the blocks passed like 170 don't seem to be well documented, but I am trying to keep track best as I can.
<img src="http://pictureposter.audiworld.com/14154/vagdb.jpg">
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12-04-2002, 10:51 PM
#8
AudiWorld Super User
yeah, you (gk1) got that online somewhere?
