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How to rev the engine

Discussion in 'Gen 3 Prius Technical Discussion' started by fluffypony, Sep 25, 2023.

  1. fluffypony

    fluffypony New Member

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    I was told by a mechanic that I needed to replace the Mass Airflow Sensor. Afterwards the engine spotters to a stop every time I try starting it I mechanic mentioned I need to put it in park and rev the engine continuously for 15 minutes for it to learn the new airflow.
    I was wondering how to rev the engine?
    I have a GEN three 2010
     
    #1 fluffypony, Sep 25, 2023
  2. JC91006

    JC91006 Senior Member

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    Just disconnect the 12v battery for 10 seconds and reconnect. You may have to clean your throttle body too
     
    #2 JC91006, Sep 25, 2023
    Brian1954 likes this.
  3. StarCaller

    StarCaller Senior Member

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    or try this driving pattern here which got first posted by @Elektroingenieur & got mentioned a few times by @ChapmanF /
    it finally made the dtc disappear after I forgot to plug in the maf plug while cleaning the egr.
    " During normal driving, increase the vehicle speed to 50 mph (80 km/h).
    Depress the accelerator pedal fully to increase the vehicle speed to between 62 and 75 mph (100 and 120 km/h) (engine speed of 4000 rpm or more) and then maintain the speed for at least 5 seconds."

    permanent P0102 readiness monitor stuck "incomplete" | PriusChat
     
    #3 StarCaller, Sep 25, 2023
  4. sam spade 2

    sam spade 2 Senior Member

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    SOME of you need to read the original post a little more carefully.

    And I think that this so called "mechanic" if full of crap.
     
    #4 sam spade 2, Sep 26, 2023
  5. Mendel Leisk

    Mendel Leisk EGR Fanatic

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    Do you still have the original MAF sensor?

    What’s the miles on it?

    How soon after start up does it sputter to a stop? A few seconds? If so it’s not really running; that’s just the hybrid system spinning it (and getting discharged).

    I’d second your current mechanic being a big part of the problem.
     
    #5 Mendel Leisk, Sep 26, 2023
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