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e90 325i Air flow meter

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Hi Guys,

Just a few questions.

If you unplug the airflow meter should you hear or feel an idle change?

Mine doesn’t do this, i took it out to clean a week back cos of errors i got from a diagnostic.

After doing that i noticed the car felt abit better and went lighter on fuel.

However i have been driving around today looking for a new one and was suppressed when i saw i did not connect it back after i cleaned it.

The guy checked and said it must be completely dead if the idle does not change if you connect and disconnect it.

I will read the codes again but i don’t want to replace something if something else might be wrong

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