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Car Shopping

Discussion in 'Gen 2 Prius Main Forum' started by Jolly, Nov 1, 2013.

  1. Jolly

    Jolly Junior Member

    Joined:
    Aug 23, 2013
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    Location:
    Appleton, Minnesota
    Vehicle:
    2008 Prius
    Model:
    Five
    I'm going to be looking at a couple of Prii next week. I have the Engine Link app on my iPhone and the Elm wifi unit from my former Prius. I plan on hooking it up to these cars I'm looking at once I leave the car lot for a test drive. Any help as to what I should check for? I have the Gen II presets loaded in Engine Link.

    Thanks Everyone
     
    #1 Jolly, Nov 1, 2013
  2. nh7o

    nh7o Off grid since 1980

    Joined:
    Dec 10, 2011
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    Location:
    Hawaii
    Vehicle:
    2009 Prius
    Model:
    II
    Which PID's does Engine Link decode? Hopefully all the relevant hybrid parameters. I would look at:

    *the spread of HV battery module voltages and internal resistances (should be only small variations)
    *the temperature rise of inverter and MG1 MG2 after a test drive (should be just warm in cold MN)
    *12 battery voltage (initially ~14V then down to ~13.5V after some minutes)
    *Peak Amps into HV battery when sharp braking (should be close to 80A)
    *Engine temp (around 85C after warm up)
    *If I wanted to really go over it with a critical eye, I would look at the O2 sensors and catalytic converter signals. I haven't checked those, so can't give realistic values to watch for.
    *Tire pressures? If one was low, I might suspect a slow leak.

    The other main things can be seen in the MFD, like MPG, and the operation of the energy arrows. I'm sure others might add to this.
     
    #2 nh7o, Nov 2, 2013
  3. Britprius

    Britprius Senior Member

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    Jun 14, 2010
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    Location:
    Herefordshire England
    Vehicle:
    2008 Prius
    Look at time or millage since last DTC cleared. A short time could mean there is trouble waiting, you can ask what was wrong, and what code was cleared.

    John (Britprius)
     
    #3 Britprius, Nov 2, 2013
  4. Jolly

    Jolly Junior Member

    Joined:
    Aug 23, 2013
    81
    12
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    Location:
    Appleton, Minnesota
    Vehicle:
    2008 Prius
    Model:
    Five
    I have 14 IR "reports" to choose from and 14 HV Block "reports". Any idea what these levels should read?
     
    #4 Jolly, Nov 3, 2013
  5. Jolly

    Jolly Junior Member

    Joined:
    Aug 23, 2013
    81
    12
    0
    Location:
    Appleton, Minnesota
    Vehicle:
    2008 Prius
    Model:
    Five
    I'm not sure I can do that with Engine Link. My options on that screen are; "Read Trouble Codes", "Read Pending Codes", and "Clear Trouble Codes".
     
    #5 Jolly, Nov 3, 2013
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