Throttle And Oil Codes After Cleaning

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Priuslover09, Jan 25, 2020.

  1. Priuslover09

    Priuslover09 Member

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    Got theses codes after cleaning the dirty oil and dirty throttle in my Dad’s 2004 Blue Prius.
    P0301 P302 P0303 P0304 P0305 P0306

    P0307 P0308 P0309 P0310 P0311 P0312

    P0313 P0011 P0014 P0018 P0022 P0023

    Any ideas? My dad and I cleaned the oil and throttle 3 hours ago
     
    #1 Priuslover09, Jan 25, 2020
    Last edited: Jan 25, 2020
  2. Priuslover09

    Priuslover09 Member

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    The car just got an oil change and the brakes replaced at Jerry’s Toyota in overlea md where the car was bought in 04
     
    #2 Priuslover09, Jan 25, 2020
    Last edited: Jan 25, 2020
  3. Priuslover09

    Priuslover09 Member

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    The car has 300.098 miles
     
  4. Priuslover09

    Priuslover09 Member

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    The car has the red triangle and the Maintenance light on
     
  5. Washingtonian

    Washingtonian Active Member

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    Kind of interesting, but I don't see the relevancy of fault codes from an 04 Prius with 300K miles being posted on a forum for 2017 and newer Prius Primes.
     
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  6. jerrymildred

    jerrymildred Senior Member

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    Gen 2 Prius owners are probably not watching the Prime forum very closely. Hit the "Report" button and ask a moderator to move this to the proper forum. You'll get better and quicker help there.
     
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  7. Trollbait

    Trollbait It's a D&D thing

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    You can google the codes. Most are an open standard, and some won't apply; the computer seems to generate multiple ones for one issue.

    The three I checked were misfires in cylinders 1, 7, and 9. Obviously, there are only 4 cylinders.
    When was the last time the spark plugs were changed? They are the first thing to check for a misfire.
     
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  8. Mendel Leisk

    Mendel Leisk Senior Member

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    How'd you clean the throttle body? Carb cleaner spray can sprayed into the throat? It's safer to just spray a shot onto a shop towel and wipe down the barrel interior and blade. You can do a better job if your remove the bolts/nuts, lift the throttle body right off (leave coolant lines attached, and clean from both sides.

    Not sure what you mean by "cleaning the dirty oil". Again, what were you using, and where?
     

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    #8 Mendel Leisk, Jan 26, 2020
    Last edited: Jan 26, 2020
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  9. Raytheeagle

    Raytheeagle Senior Member

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    That's a lot of codes:cool:.

    Was anything electrical disconnected?

    Is everything plugged in and have checked?

    Does the car even get to "ready"?

    If it does get to "ready", what does it run and sound like?

    Was the orange safety plug pulled and is it properly seat?

    Good luck and keep us posted(y).
     
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  10. Mendel Leisk

    Mendel Leisk Senior Member

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    Or clamp not tightened up, say on the throttle body air intake? There's also a gas tank vapour hose: it's pushed back on ok?
     
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  11. Priuslover09

    Priuslover09 Member

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    The car goes into ready the smart plugs were replaced in 2018 of December
     
  12. Priuslover09

    Priuslover09 Member

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    I was cleaning dirty throttle and the dirty oil
     
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  13. Mendel Leisk

    Mendel Leisk Senior Member

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    Got that. How, specifically?
     
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  14. Priuslover09

    Priuslover09 Member

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    By cleaning it that’s how
     
  15. Priuslover09

    Priuslover09 Member

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    I used a wet sponge and a dry rag if that’s what u mean
     
  16. Mendel Leisk

    Mendel Leisk Senior Member

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    Did you spray carb cleaner directly into throttle body throat?
     
  17. Priuslover09

    Priuslover09 Member

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    No I used a wet sponge and a wet rag
     
  18. alinica2001

    alinica2001 Junior Member

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    did you check for DTCs BEFORE doing this cleaning?
    I would try to erase all DTCs and see if any new DTCs are coming up after that.
     
  19. Mendel Leisk

    Mendel Leisk Senior Member

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    On the throttle body? Wetted with water? on the outside or inside?
     
  20. Priuslover09

    Priuslover09 Member

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    Inside
     
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