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ICE won't shut down

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Dick Dyszel, Apr 18, 2013.

  1. Dick Dyszel

    Dick Dyszel Junior Member

    Joined:
    Apr 18, 2013
    2
    0
    0
    Vehicle:
    2004 Prius
    Model:
    II
    I recently borrowed an engine code scanner after my check engine light went on and got a
    P0505 code on my 2004 Prius with 185,000 miles and started to fix things. I replaced the
    PCV and spark plugs as well as the air filter. It ran fine, but decided to also clean the
    MAF using CRC MAF cleaner and also clean the throttle body and butterfly using CRC
    Throttle Body cleaner. I also carefully washed out the engine compartment using Gunk
    Foamy.

    I seem to have put it all back together, but now the ICE won't shut down, even when
    warm, and actually wants to rev beyond what seems to be needed.

    I got another scanner and got some stuff that I honestly don't understand. It said 2 codes
    then gave me P0505 followed by:
    Mil On
    Monitor 0 inc
    6 ready
    misfire
    fuel
    comp
    catalyst
    evap
    O2 sensor

    This is starting to get scary can someone suggest a cause and solution?
     
    #1 Dick Dyszel, Apr 18, 2013
  2. northwichita

    northwichita .

    Joined:
    Sep 24, 2006
    481
    102
    29
    Location:
    Wichita KS
    Vehicle:
    2004 Prius
    I had the traction control light come on and couldn't drive over 35 once when I cleaned my very dirty MAF. Disconnecting the 12 volt system for 10 - 20 secs and reconnecting cleared my problem, this may do the same for you, as part of your problems appeared with the cleaning.

    Looking up P0505 points to a problem with the electronic throttle motor, so if this code comes back, I would consider replacing this. They rarely go bad, I would consider used for the replacement , research more on this, I haven't personally dealt with it.
    Diagnostics for P0505
    Google Drive Viewer
     
    #2 northwichita, Apr 18, 2013
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