Lets Fix That Prius

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by johnnychimpo, Feb 21, 2021.

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  1. rjparker

    rjparker Tu Humilde Sirviente

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    What is the 12v battery currently reading? Did you allow a few minutes during the jump attempts to equalize the 12v batteries?

    Most p-lock problems are caused by a low voltage battery. A quick jump will not always raise the voltage enough especially if the 12v battery is damaged.

    It is hard to understand what you are writing.

    CFB2E018-E216-431B-ACF2-D9293612CCAB.jpeg C9822AE4-173C-42E5-87DB-7B51775A4972.jpeg 46EC059D-28D0-4C23-B5F2-2768E520387A.jpeg
     

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    #21 rjparker, Feb 27, 2021
    Last edited: Feb 27, 2021
  2. johnnychimpo

    johnnychimpo Active Member

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    Sorry I was on my phone outside for most of this. Now aux battery is at 11.4 so battery is low needs to be replaced. so I have connected my truck battery to the car I know the truck battery is good but the result is the same with the p-lock. Truck battery reads 12.5 volts
     
    #22 johnnychimpo, Feb 27, 2021
  3. SFO

    SFO Senior Member

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    Start checking the fuses, and maybe try clearing the codes before scanning it once again. Are the above DTCs current?

    Do all of the lights work; dash, dome, etc.
     
    #23 SFO, Feb 27, 2021
  4. johnnychimpo

    johnnychimpo Active Member

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    yes dome lights work and all dash lights. I cant use my generic odb Im using this tech stream seems to have more functionality.
    I will check fuses in the morning. do relays go bad suddenly like fuses or what is the behavior
     
    #24 johnnychimpo, Feb 28, 2021
  5. SFO

    SFO Senior Member

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    Generic OBD2 scanners rarely work well, or will return false codes (DTCs), it would be best to only use techstream.

    What are the current DTCs (obd2 codes) again?
     
    #25 SFO, Feb 28, 2021
  6. johnnychimpo

    johnnychimpo Active Member

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    upload_2021-2-27_21-47-7.png

    upload_2021-2-27_21-48-41.png
    where would you focus? im thinking power source control. or ECM(Engine) either a fuse is blown or relay. would you happen to know which I should check? I see the prius ECM goes for 30 to 100 bucks on ebay. Even if this is the issue do I need to reprogram it? if so is it hard to do?
     
    #26 johnnychimpo, Feb 28, 2021
  7. johnnychimpo

    johnnychimpo Active Member

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    I FIXED THE ENGINE NO START! is was IGN #2 fuse in the engine bay.

    now on to replacing the engine bay diagrams on the cooling reroute to get the 2016 engine into the 2010?
     
    #27 johnnychimpo, Feb 28, 2021
    Mendel Leisk and SFO like this.
  8. johnnychimpo

    johnnychimpo Active Member

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    ON a side note this bothers me the only reason for a height difference in piston travel height is a bent rod worn bearing right as the car runs fine. Just the misfires here and there.
     
    #28 johnnychimpo, Feb 28, 2021
  9. Mendel Leisk

    Mendel Leisk Senior Member

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    Compression roughly the same on all?
     
    #29 Mendel Leisk, Feb 28, 2021
  10. johnnychimpo

    johnnychimpo Active Member

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    first three yes number had higher comperssion. like 190
     
    #30 johnnychimpo, Mar 1, 2021
  11. Mendel Leisk

    Mendel Leisk Senior Member

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    And #4 lower?

    How about a new short block? They’re about 2 grand though.
     
    #31 Mendel Leisk, Mar 1, 2021
  12. rjparker

    rjparker Tu Humilde Sirviente

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    Now the compression was 190?

    Haven't you already sourced a 2016 gen4 engine with 10k miles?

    Are you planning on using the old gen3 egr and intake as others have done?

    Do you have a mechanic that is doing this swap for you?
     
    #32 rjparker, Mar 1, 2021
  13. johnnychimpo

    johnnychimpo Active Member

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    #33 johnnychimpo, Mar 1, 2021
  14. johnnychimpo

    johnnychimpo Active Member

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    What tool do I need to remove flywheel and fuel line ?
     
    #34 johnnychimpo, Mar 1, 2021
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