Cleaning my MAF sensor.

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by mhdriver, Apr 4, 2026 at 10:00 PM.

  1. mhdriver

    mhdriver Member

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    It wasn't the smartest thing to do. Was getting 48 mpg after cleaning EGR system. Figured for $8 a can, why not clean the ol' MAF sensor? Maybe I'd get 52 mpg? Wrong! My mileage dropped down to 40- 41 ish. Now back up to 47 mpg about,1500 miles later. I am not touching it again :) Today was my best day ever, 56 mpg. I did baby it, but very happy with that number!
     
    #1 mhdriver, Apr 4, 2026 at 10:00 PM
  2. AzusaPrius

    AzusaPrius Senior Member

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    Next time disconnect the 12v battery.

    You will see the results faster and it will not take 1,500 miles.
     
    #2 AzusaPrius, Apr 4, 2026 at 10:29 PM
  3. mhdriver

    mhdriver Member

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    I did exactly that, on 3 different occasions. 3rd time was the charm :).
     
    #3 mhdriver, Apr 4, 2026 at 10:47 PM
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