2013 550i p0172 code

[henny1369]

Seeing if anyone had any insight on my issue. Getting a P0172 code after care was in for alternator change. Not sure if maybe a vaccum line or something could've been touched or I'm really having fuel issues or MAF issue...

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[jclausen]

It should mean rich bank1 so I might take it back and have the worked checked

[henny1369]

It should mean rich bank1 so I might take it back and have the worked checked

It does....I think my MAF sensors are shot I cleaned them and nothing and my scanner is reading 0 on the MAF perimeters while pressing the throttle

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[dewana421]

It does....I think my MAF sensors are shot I cleaned them and nothing and my scanner is reading 0 on the MAF perimeters while pressing the throttle

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What are you using to check the MAF?
Check resistance on the pin 3 and 4. It should be somewhere 1k to 2k ohms ...
It doesn’t make sense for MAF to just go bad on a job unrelated to it.

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[henny1369]

What are you using to check the MAF?
Check resistance on the pin 3 and 4. It should be somewhere 1k to 2k ohms ...
It doesn’t make sense for MAF to just go bad on a job unrelated to it.

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Thanks... yeah changed the MAF sensors Monday everything bk to normal. I was using my Autell scanner it shows you the live data

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