1. The site is migrating to a new server this week, so there will likely be some downtime during that process. You can follow along here for updates.

Error codes P0300-P0304 After fill up while tanker truck was refueling station

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by David G Hansen, Apr 3, 2023.

  1. David G Hansen

    David G Hansen New Member

    Joined:
    Apr 3, 2023
    1
    0
    0
    Location:
    Idaho
    Vehicle:
    2004 Prius
    Model:
    N/A
    My son borrowed my 2004 Prius and refueled the car while a tanker truck was refilling the station tanks. Now I have multiple error codes leading me to believe he got contaminated fuel. I suspect the tank will need to be drained and injectors cleaned or replaced. I have around 260K miles on the car and last fall replaced the hybrid battery pack with Nexcells. I am a “backyard” mechanic. Are my assumptions correct and must the tank be drained and cleaned? What of the in-line fuel filter? Any suggestions?
     
    #1 David G Hansen, Apr 3, 2023
  2. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    105,241
    47,755
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    idk if there is a connection or not. how many miles on her?
     
    #2 bisco, Apr 3, 2023
  3. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    105,241
    47,755
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    one possibility:

    watch
     
    #3 bisco, Apr 3, 2023
  4. mr_guy_mann

    mr_guy_mann Senior Member

    Joined:
    Sep 3, 2020
    2,872
    1,167
    0
    Location:
    NJ-USA
    Vehicle:
    2006 Prius
    Model:
    Four
    Safely raise and support the back of the car. Disconnect the (lower?) fuel line connection at the right side front corner of the fuel tank.

    Use a glass jar to collect a fuel sample from the tank (ideally you have a capable scantool that can bidirectionally command the pump on) - (or remove the rear seat base and connect 12V power and ground direct to the fuel pump terminals per the factory wiring diagram). See if any contaminates settle out - water is pretty obvious.

    Does the car misfire constantly? What scantool are you using? (Can it show misfire data?). What are short and long term fuel trims doing?

    Posted via the PriusChat mobile app.
     
    #4 mr_guy_mann, Apr 3, 2023
(You must log in or sign up to post here.)
Loading...
Similar Threads - Error codes P0300
  1. Guga

    C1241 & C2318 error codes

    Guga, Aug 20, 2023, in forum: Gen 2 Prius Care, Maintenance and Troubleshooting
    Replies:
    3
    Views:
    187
    bisco
    Aug 21, 2023
  2. priuslover17

    P0A09 Error Code Appearing

    priuslover17, May 19, 2023, in forum: Gen 2 Prius Care, Maintenance and Troubleshooting
    Replies:
    4
    Views:
    322
    bisco
    May 19, 2023
  3. Jake Miller

    Multiple Error Codes - P0138, U0293, U0100

    Jake Miller, May 16, 2023, in forum: Gen 2 Prius Care, Maintenance and Troubleshooting
    Replies:
    4
    Views:
    547
    Jake Miller
    May 23, 2023
  4. ggriggs

    P1116 error code

    ggriggs, Mar 24, 2023, in forum: Gen 2 Prius Care, Maintenance and Troubleshooting
    Replies:
    5
    Views:
    546
    Gino Veltri
    May 16, 2023
  5. spyogenes

    2004 Prius with 350k and a handful of error codes

    spyogenes, May 29, 2018, in forum: Gen 2 Prius Care, Maintenance and Troubleshooting
    Replies:
    1
    Views:
    2,024
    Kon_rouge
    Aug 23, 2019