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  1. thisboy47
    Post

    Pump valve replaced, MPGs up!

    Coolant flow valve. Part 16670-21010. The check engine code was P1121. Under warranty until 150k at least here in CA.
    Post by: thisboy47, Jan 25, 2014 in forum: Gen 2 Prius Care, Maintenance and Troubleshooting
  2. thisboy47
    Thread

    Pump valve replaced, MPGs up!

    My check engine light was throwing the code P1121 for the coolant flow valve. Toyota replaced it under a warranty enhancement (I have 134k on...
    Thread by: thisboy47, Jan 25, 2014, 4 replies, in forum: Gen 2 Prius Care, Maintenance and Troubleshooting
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