1. Attachments are working again! Check out this thread for more details and to report any other bugs.

??Safe to rev in inspection mode?

Discussion in 'Gen 2 Prius Technical Discussion' started by northwichita, Jun 18, 2010.

  1. northwichita

    northwichita .

    Joined:
    Sep 24, 2006
    481
    102
    29
    Location:
    Wichita KS
    Vehicle:
    2004 Prius
    Is it safe to rev the engine while in inspection mode (forced idle).
    Someone has a question about checking for valve noise in the top thread about common 2G problems in the maintenance discussion, and I unsure about giving advice concerning revving the engine via the throttle motor. I will mention, I suppose, the check engine light will turn on.

    link (forced idle) from
    Prius base idle

    Edit' inspection mode is actually more complicated, found a description at this link
    http://priuschat.com/forums/gen-ii-prius-main-forum/71580-cant-get-inspection-mode.html
    End edit


    idle motor
    Prius TPS
    where hobbit describes
    'and feel the ECM actively fight you when you try to turn the flap.'
    so is this ....something I should not do?
     
    #1 northwichita, Jun 18, 2010
  2. Rokeby

    Rokeby Member

    Joined:
    Jan 21, 2008
    3,033
    708
    75
    Location:
    Ballamer, Merlin
    Vehicle:
    2008 Prius
    Check this out, the cars were run in the inspection mode...
    which is not say it's a good thing to do, just that is has been done:



    More discussion in this thread.
     
    #2 Rokeby, Jun 19, 2010
  3. Bob64

    Bob64 Sapphire of the Blue Sky

    Joined:
    Apr 9, 2007
    1,540
    92
    0
    Location:
    Virginia
    Vehicle:
    2007 Prius
    Model:
    N/A
    yes, its safe. I believe engine revving is part of some toyota coolant bleeding procedures.
     
    #3 Bob64, Jun 19, 2010
  4. Patrick Wong

    Patrick Wong DIY Enthusiast

    Joined:
    Mar 8, 2008
    18,199
    6,464
    0
    Location:
    Green Valley, AZ
    Vehicle:
    2015 Prius
    Model:
    Two
    It is safe to rev the engine, and you will find that the speed will only be around 2,500 rpm.

    The check engine light will not come on. Instead the master warning light will turn on and the hybrid vehicle icon will appear in the MFD.

    Yes, I would not try to turn the throttle valve while it is being controlled by the throttle motor.
     
    #4 Patrick Wong, Jun 19, 2010
(You must log in or sign up to post here.)