What do you think is causing the first three codes

Discussion in 'Gen 3 Prius Technical Discussion' started by douglasjre, Jul 29, 2026 at 3:43 PM.

  1. douglasjre

    douglasjre Senior Member

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  2. PriusCamper

    PriusCamper Senior Member

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    Why no details? Can you give us more background info? How many miles on the car? Did these codes show up recently? Or is there a chance they've been sitting in there for a while? Did they come back right away after you cleared them?

    In general this could be as easy as a bad tank of gas and problem goes away once that gas is gone... OR it could mean your engine is not burning fuel efficiently / in a clean way and is in need of a tune up or other repairs? What's the service history?

    We aren't mind readers... You gotta give details if you wanna get details!