TT (Mk1) Discussion Discussion forum for the Mk1 Audi TT Coupe & Roadster produced from 2000-2006

MAS sensor issues

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Old Jul 17, 2009 | 06:32 AM
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Default MAS sensor issues

I just bought my TT. 2001 225hp quattro roadster. I love it, but the MAS was bad. I replaced it and the CEL is still on. It is starting to effect my turbo. Any ideas as to how to correct this problem?
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Old Jul 17, 2009 | 08:01 AM
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TTP
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What was your procedure in the replacement. Did you reset the error code after you replaced the MAF? I'm also assuming you meant to reference the Mass Air Flow sensor.
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Old Jul 17, 2009 | 08:10 AM
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Originally Posted by TTP
What was your procedure in the replacement. Did you reset the error code after you replaced the MAF? I'm also assuming you meant to reference the Mass Air Flow sensor.
Thanks, I did mean the MAF. I did reset the code, but the light came back on within a day. Is it possible that the connection is bad? Air filter is clean. I also read in another post that someone cleaned the sensor. how can I do that? maybe it is just dirty.
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Old Jul 17, 2009 | 10:03 AM
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it could be that the replacement MAF is bad too. I've had that happen 3 times. The first 2 replacements were bad. The other issue is that your O2 sensor may be bad. That will throw the CEL too. What was the VAG code error indication?
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Old Jul 17, 2009 | 10:15 AM
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The code was only coming up for the Mass Airflow Sensor. But it was coming up twice, which I thought was weird.
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Old Jul 17, 2009 | 11:14 AM
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I think I am going to try this tonight — MAF Cleaning... http://www.wak-tt.com/mafclean/mafclean.htm

If this does the trick, I am not sure if I will be mad that I bought a brand new sensor, or glad that I have an extra LOL
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