catalytic converter shield

  1. babouzy
    Thread

    Cat security shield blocking O2 sensor access

    I have a 2007 Prius with the ccm cat security shield. I need to replace the downstream o2 sensor but the shield blocks access to it. I had it on...
    Thread by: babouzy, Dec 8, 2022, 3 replies, in forum: Gen 2 Prius Care, Maintenance and Troubleshooting
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