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

follow up: Did vag on new MAF. With APR93 it peaks at 190g/s stock mode is at 180g/s

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Old Jun 22, 2005 | 08:03 AM
  #1  
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Default follow up: Did vag on new MAF. With APR93 it peaks at 190g/s stock mode is at 180g/s

This is all after the reset of ECU and TB adaptaion. I thought it was supposed to be over 200 for chipped. I also noticed that the readout is not relative to boost, for example it will hit 185-190 over 6K RPM, while under max boost 20-21psi (4.5K RPM) its only at 155-160g/s.

I'm confused...is this MAF good or not? Do I need to let it adapt a bit more?
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Old Jun 22, 2005 | 08:13 AM
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Default I did a follow up too

Mine is 100% stock and it peaked as 193 g/s and part throttle is back down from +13 to +3.1.(after resetting codes, TB adjust and driving 100 miles since last test).
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Old Jun 22, 2005 | 08:16 AM
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Default did it take full 100 miles for these figures or did you see them righaway?

Trying to see if I need to wait a little wile longer for things to "sync". I only put about 10 miles on the car since MAF replacement. Oh and what RPM/gear did you see the 190 at?
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Old Jun 22, 2005 | 08:18 AM
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Default Little low...>>

Boost has nothing to do with it BTW, it's strictly an airflow measurement. Do you have an exhaust? That will affect potential flow.
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Old Jun 22, 2005 | 08:19 AM
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Default Mine took a few more miles to adapt - it is not instantaneous. I would give it at least 30-40.

Mine did go from -11.9 to +5.5 after about 40 miles on a new MAF.
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Old Jun 22, 2005 | 08:22 AM
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Default no exhaust, just mods listed in sig. Should I let it adapt for 50-100 miles before I start pulling

my hair out?
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Old Jun 22, 2005 | 08:24 AM
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What about G/S reading? Did it also increase with mileage?
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Old Jun 22, 2005 | 09:11 AM
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Default No, g/s is an instantaneous reading, no adaptation necessary. Like I said above, the first one I

swapped in (a rebuilt Audi) read close to the original I had in (>150 with a ****). The VW one read 180+ right off the bat.
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Old Jun 22, 2005 | 09:11 AM
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Default

Do you have access to "known good" MAF? New =/ Good!
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Old Jun 22, 2005 | 09:17 AM
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nope no access...I'll post a request here to see if anyone can help.
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