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Old 06-21-2007, 04:03 PM
gmercoleza gmercoleza is offline
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Join Date: Sep 2004
Location: DFW / Collin County Texas
Posts: 1,882
Quote:
Originally Posted by jcyuhn View Post
You are definately out of the woods until you are back in the woods.

Sorry, couldn't resist. I've never seen any discussion or reports on how long a clean MAF lasts relative to a new MAF. You are officially the guinea pig. In theory there's nothing to wear out, so I would expect a reasonably long life.

Even if the MAF does go south it's not that big a deal. The ECU has a mode which ignores the MAF signal and guesses at the fuel injector pulse width. The car doesn't run great, but it runs, so it's not as if you can get stranded.

BTW, the car is drive-by-wire. The M104s since 1993 have been. The throttle cable is for limp mode.

- JimY
Thanks for the input, yes I realize from everything I have read that this is only a temporary fix. I have read at VW, Ford, Honda, and Maxima forums that after cleaning a MAF the problems can reappear in as little as 6 months to, in some cases 2 or 3 years. (interesting that there were tons of threads about MAF cleaning at those forums but only a reference or two here at MBshop...)

My question about being "out of the woods" revolved more around the computer adaptions. I was wondering if 25 miles and 1 hour of driving were enough time to let the computer do its thing. I was under the impression that if the MAF were still bad, the behavior would return after some specified interval based on time and/or miles.

BTW - thanks for the info on the drive-by-wire. I keep learning new things about this M104 every day...

Very interestingly, I had a very slight but noticeable flare between 3-4 which has disappeared after cleaning the MAF - I know I am not imagining it. Now that shift is very clean like all the rest. I can't understand how the MAF influences shift quality, but apparently it does somehow.
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