"EGR DELETE" Instructions

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Paladain55, Jun 17, 2023.

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  1. rjparker

    rjparker Tu Humilde Sirviente

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    An increasingly common egr valve problem is a valve that sticks open when it should be closed. This can causes stumbling and stalls.

    Blocking the egr is diagnostic of a sticking valve and is better than only disconnecting the connector.
     
    #121 rjparker, May 18, 2026 at 8:36 PM
    Last edited: May 18, 2026 at 9:01 PM
  2. CR94

    CR94 Senior Member

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    My understanding is that if the connector is unplugged, engine management programming recognizes that and adjusts timing or other variables to minimize risk of knock that EGR normally supresses.
     
    #122 CR94, May 18, 2026 at 8:52 PM
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