2016 2 Eco Misfiring

Discussion in 'Gen 4 Prius Care, Maintenance and Troubleshooting' started by 2016eco2, May 3, 2026 at 10:48 PM.

  1. 2016eco2

    2016eco2 New Member

    Joined:
    Sunday
    3
    0
    0
    Location:
    Philadelphia pa
    Vehicle:
    2016 Prius
    Model:
    Two Eco
    Hi all, I have a 2016 with 250k. Today after Ive been driving for awhile it started missing on acceleration but theres no check engine light. Coolant is full, plugs look good. Seems to drive okay when its cold. I have a spare EGR system from my 2010 4th gen swap. I was just going to swap that over and see what happens. But i know these dont typically go bad on the 4th gen. Also it looks difficult do to the inverter being in the way. Any suggestions on what it could be? Thanks in advance.
     
    #1 2016eco2, May 3, 2026 at 10:48 PM
  2. Mendel Leisk

    Mendel Leisk MMX GEN III

    Joined:
    Oct 17, 2010
    61,123
    42,040
    80
    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    How long have you had it?
     
    #2 Mendel Leisk, May 5, 2026 at 9:35 AM
  3. BiomedO1

    BiomedO1 Senior Member

    Joined:
    Mar 27, 2021
    4,330
    2,273
    0
    Location:
    Left Coast
    Vehicle:
    2021 Prius Prime
    Model:
    LE
    A 2010 is a gen3; so unless you've got a very early 2016 - they're not compatible.

    Have you done ALL the required maintenance? ie. coolant changes, throttle body cleaning, air filter and intake tubes? Those are the two things I'd look at first
     
    #3 BiomedO1, May 5, 2026 at 9:42 AM
(You must log in or sign up to post here.)