Could be a cracked or misaligned intake hose allowing more air into the engine

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May 23, 2024
1:44:06pm

misterpepper Redshirt Freshman

Could be a cracked or misaligned intake hose allowing more air into the engine

than the MAF sensor is calculating for. They tend do crack at the bellows. Easy to fix temporarily with tape while you get a new one on order.

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misterpepper

Bio page: misterpepper
Joined: May 10, 2021
Last login: Jun 20, 2024
Total posts: 187 (0 FO)

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Messages

Author

Time

I replaced a failed power steering pump on my uncle's 2004 BMW 325ci last night

jdub FORMER USER

May 23, 12:49pm

Most likely a vacuum leak. Check for a hose unplugged.

John Doe

May 23, 12:53pm

Could be a cracked or misaligned intake hose allowing more air into the engine

misterpepper

May 23, 1:44pm

It was the mass airflow sensor. If I unplug it, the car runs great. It's about $70 to replace.

jdub

May 23, 5:02pm

That doesn't sound right. The MAF is metering fuel based on how much air it

misterpepper

May 23, 5:43pm

I did remove the intake hose entirely, and yes it still runs. So, your opinion is there's still a crack somewhere,

jdub

May 23, 5:55pm

If there's a crack or a vac leak a good MAF will give bad data because

misterpepper

May 23, 6:07pm

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