I've been Dealing with what was suspected to be a faulty MAF.....

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Aug 9, 2006 | 10:57 PM

BIGDROCH

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I've been Dealing with what was suspected to be a faulty MAF.....

I've been rollin around for awhile on a motor that wouldn't hold 22-23lbs of boost for more then 2 seconds before dropping and holding at about 10lbs for the remainder of the throttle. I also had a coolant temp sensor problem. So i ordered 2 new temp sensors, and clips (cuz they're cheap) and a new MAF from ECS tuning. I replace the Temp sensor and the dropping temp gauge seems to have disappeared.

I removed the OLD MAF and to my suprise I noticed something missing....

<img src="http://i18.photobucket.com/albums/b130/bigdroch/TT%20Pictures/FaultyMAF.jpg">

Yes the Resistor is missing from the MAF. I'm guessing that was the reason it stopped working???

Aug 10, 2006 | 01:12 AM

TTapsale

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As I recall that resistor(thermistor)maynot be necessary in the TT.

<center><img src="http://pictureposter.audiworld.com/24828/mafs.jpg"></center><p>Here's two new ones side by side.Is it throwing NE codes?

Aug 10, 2006 | 01:56 AM

VenTTed

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Nope - they're not present in the TT version. It's a universal mold.

Aug 10, 2006 | 07:45 AM

BIGDROCH

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Nope not throwing any codes but....

I tried the new one this morning to see if it would start finally holding some boost and it looked pretty good on a full 3rd gear acceleration but dropped during 4th gear into the low teens.... So as of right now the new MAF has not solved my falling boost problem. I've only made one full throttle pass on the way to work so hopefully I have a couple oppurtunities to drop the hammer later after work. I'll see how it goes...

If my boost keeps falling and I changed the MAF and Coolant Temp Sensor, what else could be causing my boost to fall on it's face without ever throwing any codes?

Aug 10, 2006 | 08:18 AM

Seneb

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Nope, not necessary. I have a pic just like that with a VW MAF next to a TT MAF.

<center><img src="http://www.senebphoto.com/Auto/TT/MAF-noresistor.jpg"></center><p>Old, dead TT MAF on the left, and new VW MAF on the right. At first I thought it went bad because the resistor fell off. Schwing slapped me back to reality and let me know it never had one.