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Prius running without catalytic converter assembly

Discussion in 'Gen 2 Prius Main Forum' started by Ian Simons, Jul 3, 2020.

  1. SFO

    SFO Senior Member

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    When you can "barely make it up a hill", what does the MFD show for the HV battery SOC, is it all the way down at one bar?

    What is the size of this hill, is that like a small mountain (1k feet) or just a small elevation change in a few steep city blocks?

    Have you heard this "metal on metal slapping sound" in the past?
     
  2. sam spade 2

    sam spade 2 Senior Member

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    I thought we were WAY past that; guess not.
    The excessive oil going out the tail pipe clogs and fouls the catalytic converter, which is part of the exhaust system.
    It is a chemical reaction and the oil stops that from happening.......and under some unusual circumstances can even set the accumulated oil on fire.