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just replaced the air flow sensor and now getting 2 new codes

Discussion in '2.5 Gen TRD Pro (2014-2021)' started by Bear_Murray, Apr 24, 2021.

  1. Apr 24, 2021 at 8:13 AM
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    Bear_Murray

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    Bear_Murray [OP] New Member

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    2.jpg 1.jpg
     
    Bear_Murray, Apr 24, 2021
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  2. Apr 24, 2021 at 8:19 AM
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    Bking

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    Check your vacuum hoses
     
    Bking, Apr 24, 2021
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  3. Apr 24, 2021 at 10:56 AM
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    Bear_Murray

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    Bear_Murray [OP] New Member

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    on what part?
     
    Bear_Murray, Apr 24, 2021
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  4. Apr 25, 2021 at 12:53 AM
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    Bking

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    Disregard. (1) I thought maybe you knocked loose a vacuum hose while replacing the mass air flow sensor. (2) Code is rich NOT lean. A lean code can be caused by a vacuum leak. Sorry and I hope you resolve.
     
    Bking, Apr 25, 2021
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  5. Apr 25, 2021 at 1:10 AM
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    empty_lord

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    empty_lord They see me rollin'

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    Did you use a factory part or aftermarket? This is a common issue with aftermarket
     
    empty_lord, Apr 25, 2021
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    Rex Kramer likes this.
  6. Apr 25, 2021 at 3:57 AM
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    Rex Kramer

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    Rex Kramer Vinyl Spinner

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    If it's an aftermarket sensor, replace it with OEM right away.
     
    Rex Kramer, Apr 25, 2021
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  7. Apr 25, 2021 at 6:57 AM
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    Bear_Murray

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    i have a K&N cold air intake and i replaced the air sensor with a duralast (from Advanced autoparts), the 172 & 175 are different codes after i switched air flow sensor.
     
    Bear_Murray, Apr 25, 2021
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  8. Apr 28, 2021 at 9:08 PM
    #8
    blackdemon_tt

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    blackdemon_tt Battery Slayer

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    Did you replace it while the battery was connected??? If yes, then it may be a "ghost" code... Make note of the code, then try disconnecting the battery, or clearing the codes and restart the truck and see if it comes back.
     
    blackdemon_tt, Apr 28, 2021
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