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05 malibu P0401

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Sep 30, 2010, 6:52 AM

Post #1 of 4 (4799 views)
05 malibu P0401 Sign In

EGR P0401 Cleaned EGR and light came back, put new EGR on light came back. any ideas?

05 Chevy Malibu
3.4 62000

Thanks, this is very frustration

Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Sep 30, 2010, 7:12 AM

Post #2 of 4 (4791 views)
Re: 05 malibu P0401 Sign In

Low flow isn't caused by a dirty EGR. It's the passage through the intake that gets clogged up. It will clog where the passage gets the narrowest.


We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.

Veteran / Moderator
DanD profile image

Sep 30, 2010, 8:05 AM

Post #3 of 4 (4785 views)
Re: 05 malibu P0401 Sign In

Yup P0401 Insufficient flow.
A can of aerosol air/intake cleaner and a coat hanger down the passageways; shame you went out and bought an EGR valve.
But school costs money and we all have to pay our dues; I guess?


Canadian "EH"


Sep 30, 2010, 8:28 AM

Post #4 of 4 (4778 views)
Re: 05 malibu P0401 Sign In

Thanks for taking the time to help! your expertise is appreciated!

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