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      06-27-2022, 09:24 AM   #20
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Drives: M235i 6MT EB
Join Date: May 2018
Location: Ontario, Canada

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Quote:
Originally Posted by MegaMatt3 View Post
Ok, I'm going to answer my own question, but I'm happy to be corrected. The top box, located on the charge pipe, located closer to the throttle body, is the MAP (Manifold Absolute Pressure) sensor. The bottom box, located near the intake, is the MAF (Mass Air Flow) sensor.

The MAF sensor is the one we're talking about removing as part of the software reset procedure. I'm also considering cleaning it while it's out, though my tech said he recommends never cleaning them because it can leave behind residue and can fry them.

How did I do?
Got the locations right but don't take the MAF out, just unplug it.
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