Will VAG correctly log MAF values with the AWE Stage III Kit?
04-21-2004, 11:49 AM
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Will VAG correctly log MAF values with the AWE Stage III Kit?
The fueling kit uses the AWE MAF housing which the Hitachi MAF then plugs into. Are the MAF g/s readings accurate from this setup or is there a correction factor I would need to apply? The reason I ask is that logging MAF values showed peak flow rates of mid 200's. From what I see of other Stage III kits people are getting MAF readings in the low 300's, obviously quite a difference. I am at altitude and that makes a difference. Is it possible I have a bad MAF? Anyway I can test the MAF with a voltmeter or other simple test?
04-21-2004, 11:52 AM
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I *think* its linear based on the MAF diameter...
However, Funkweasel has said that the transition from the oem airbox diameter to the larger AWE MAF diameter affects the scaling/airflow.
-Dave Pramanik
-Dave Pramanik
04-21-2004, 12:02 PM
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What I'm trying to figure out is if you increase the MAF housing diameter by x%
(without changing the sensor itself) will the measured airflow decrease by x%? By measured airflow, I mean the data that it is sending to the ECU.
-Dave Pramanik
-Dave Pramanik
04-21-2004, 12:02 PM
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The MAF values on this kit are scaled somewhat. You can get a general sense of what it is doing
but the overall VAG_com/Bosch ME7 values are not correct ie reading 225gps on an AWE S3 where there is certainly more than that with K04s(300+). Best bet would be to get Todd or Garrett to tell you how to calculate actual airflow.
And then there is that stepped MAF which really adds to the confusion. We've tried extrapolating what the AWEvalue-vs-actual gps readings are and it is not linear.
And then there is that stepped MAF which really adds to the confusion. We've tried extrapolating what the AWEvalue-vs-actual gps readings are and it is not linear.
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04-21-2004, 12:05 PM
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Dave, ping Zold-man on this. He's been playing with other MAF
housings and may have some info.
Biggest disappointment is that the fueling kit appears to be tuned specifically to that stepped thing as anything normal overdrives the sensor iirc.
Biggest disappointment is that the fueling kit appears to be tuned specifically to that stepped thing as anything normal overdrives the sensor iirc.
