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.

p0300

  1. Garage Boxwood Lightpole
    Thread

    Are these ignition coils ready to replace or can I wait? (Pictures)

    2006 Gen 2 Prius with 268,000 miles. The engine's been ticking for as many as 8-12 months now. Louder ticking when idling, faster and quieter...
    Thread by: Garage Boxwood Lightpole, Jul 1, 2023, 9 replies, in forum: Gen 2 Prius Care, Maintenance and Troubleshooting
  2. swataa
    Thread

    Help! Multiple codes and engine misfiring-- is it all connecteD?

    Hi y'all! A bit of background-- I have a 2010 Toyota Prius that just did great on a 12k road trip for two months. Before that I had changed the...
    Thread by: swataa, Jan 12, 2023, 4 replies, in forum: Gen 3 Prius Care, Maintenance & Troubleshooting
  3. sj-prius
    Thread

    Random Misfires - P0300, P0301, P0302, P0303

    Hi all, I have a 2012 Prius with 215k miles on it. It was having issues with misfires previously, so I cleaned out the egr valve, the little...
    Thread by: sj-prius, Dec 7, 2022, 8 replies, in forum: Gen 3 Prius Main Forum
  4. Hanging on with 286k
    Thread

    299,000 miles: multiple codes

    P0172, P0300, p0301, p0302, p0304 P3191 and P3193 Hello. Multiple codes were pulled in June when I thought red triangle was the Hybrid Battery....
    Thread by: Hanging on with 286k, Nov 7, 2022, 8 replies, in forum: Gen 2 Prius Care, Maintenance and Troubleshooting
  5. Justin B
    Thread

    Rumble, Smoke and P0300

    Hello everyone! I was hoping I could get some advice and help or direction here. After doing a bunch of searching this seems to be a fairly...
    Thread by: Justin B, Jun 21, 2022, 6 replies, in forum: Gen 2 Prius Care, Maintenance and Troubleshooting
  6. AlexS
    Thread

    P0300, 0301, 0302, etc.

    Hi all! New to the forum, but desperate for help. I’ve been trying to research all I can and fix this as quickly as possible in order to get my...
    Thread by: AlexS, Mar 19, 2022, 20 replies, in forum: Gen 3 Prius Care, Maintenance & Troubleshooting
  7. Kats_Pajamaz
    Thread

    P0300,0301,0302

    Last night my engine started misfiring and my reader gave me these codes. After a little bit of research, I am thinking my path is going to be to...
    Thread by: Kats_Pajamaz, Mar 6, 2022, 6 replies, in forum: Gen 3 Prius Care, Maintenance & Troubleshooting
  8. Arshad Khan
    Thread

    Prius 2007 p0300, p0301, p0302

    While driving today, got the red triangle and all other warning signs on dash 3, plugged in my obd card reader, and got the following error...
    Thread by: Arshad Khan, Feb 14, 2022, 8 replies, in forum: Gen 2 Prius Technical Discussion
  9. Prius_Angie
    Thread

    Fixing P0300, P0301, P0302 with MAP Swapout

    Recently received P0300/0301/0302 codes & significant & violent engine shaking from misfiring to my silver 2010 Prius, that's now at 252k miles....
    Thread by: Prius_Angie, Apr 18, 2021, 29 replies, in forum: Gen 3 Prius Care, Maintenance & Troubleshooting
  10. Java’s_Prius
    Thread

    Counterfeit Toyota spark plugs effects on car.

    Long story short ,20000 miles ago I had ordered some OEM spark plugs from eBay for 15 bucks (great deal right !!) and installed them in the car....
    Thread by: Java’s_Prius, Feb 24, 2021, 13 replies, in forum: Gen 2 Prius Technical Discussion
  11. Lynde Lu
    Thread

    Brakes making clunking noise?? 2010 Prius

    Hi all! Just got back from driving about 500 miles in about 12 hours enduring stormy weather and lots of water on the highways now my brakes are...
    Thread by: Lynde Lu, Feb 12, 2020, 30 replies, in forum: Gen 3 Prius Main Forum
  12. andyg
    Thread

    Code P0300 P0301 P0302

    I left my 2008 Prius (215K miles) unused for a week before the Christmas holidays. When I started the car upon my return, there was an audible...
    Thread by: andyg, Jan 1, 2020, 6 replies, in forum: Gen 2 Prius Care, Maintenance and Troubleshooting
  13. LingNccD
    Thread

    New “Check hybrid system” during diagnostics and testing

    3rd gen 2013 Prius @150k miles; Hard start was rumbling way worse than usual around 150k miles. Except during motorcycle season, the car is driven...
    Thread by: LingNccD, Sep 25, 2019, 14 replies, in forum: Gen 3 Prius Care, Maintenance & Troubleshooting
  14. Brandon Sagraves
    Thread

    Major Gen II issues

    was going around 70 on the freeway when the Prius lost a lot of power. Nursed it to the side, where it idles rough, misfires, etc. getting it...
    Thread by: Brandon Sagraves, Apr 15, 2019, 5 replies, in forum: Gen 2 Prius Care, Maintenance and Troubleshooting
  15. Triparadox
    Thread

    P0300, P0301, P0302, P0103

    I just purchased a car not very long ago (within one month) and it showed me an engine light indicator. Once plugged with OBD2, it appeared that...
    Thread by: Triparadox, Mar 12, 2019, 10 replies, in forum: Gen 3 Prius Care, Maintenance & Troubleshooting
  16. Triparadox
    Thread

    Engine Lights came out

    I just purchased a car not very long ago (within one month) and it showed me an engine light indicator. Once plugged with OBD2, it appeared that...
    Thread by: Triparadox, Mar 12, 2019, 59 replies, in forum: Newbie Forum
  17. phase_boy
    Thread

    P0003, P0103, P0203, P0403, P0300, P0301, P0302, P0304

    Good morning. Last Sunday night, my 2005 Prius (about 240,000 KMs) developed a minor shudder in the engine. I had been driving it about five...
    Thread by: phase_boy, Mar 7, 2019, 7 replies, in forum: Gen 2 Prius Care, Maintenance and Troubleshooting
  18. spyogenes
    Thread

    2004 Prius with 350k and a handful of error codes

    I recently purchased a 2004 Prius with about 350,000km on it. The vehicle had been in a minor collision about a year ago which crumpled the hood...
    Thread by: spyogenes, May 29, 2018, 1 replies, in forum: Gen 2 Prius Care, Maintenance and Troubleshooting
  19. goku9384
    Thread

    p0300, p301, and p0137

    Just yesterday going home from work I noticed my car was rough idling and low power. Luckily I was able to make it home. Read the codes I got...
    Thread by: goku9384, Feb 10, 2017, 5 replies, in forum: Gen 2 Prius Care, Maintenance and Troubleshooting
  20. AnitaT
    Thread

    2002 - Error codes C1241, C1215, P0300 - no acceleration on freeway

    I have an 02 Prius with 146,000 miles. It's been a great little baby so far, and I am still on the original battery. Lately, it has been acting...
    Thread by: AnitaT, Jan 18, 2017, 8 replies, in forum: Generation 1 Prius Discussion
Showing results 1 to 20 of 20