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Code 2B64, manifold code?

Tiny
BHAMDOC1973
  • MEMBER
  • 2009 MINI COOPER S
  • 4 CYL
  • TURBO
  • 2WD
  • MANUAL
  • 105,000 MILES
Has a very minor hiccup when cold, only have one code 2B64 Digital motor electronics: intake manifold, unmetered air.
Wednesday, October 12th, 2022 AT 10:28 AM

3 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,380 POSTS
So, the code 2B64 means there is air leaking into the intake manifold that is not passing through the air meter, it will probably be the intake is cracked which is common or you have a gasket or hose leak. Check the air intake tube for leak, use a flashlight and really go over the plastic intake then if you can't find it test the engine cold by following this guide:

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

Here are some key points to look for a leak
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Wednesday, October 12th, 2022 AT 5:44 PM
Tiny
BHAMDOC1973
  • MEMBER
  • 1,657 POSTS
Thanks. I will do a smoke test. Could a valve cover gasket leak cause this?
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Wednesday, October 12th, 2022 AT 5:53 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,380 POSTS
Yes, it could, please check it for cracks as well.
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Thursday, October 13th, 2022 AT 2:06 PM

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