p0456

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Hi everyone, My 2016 Prius just showed a check engine light. The car seems to run fine. I scanned it with my Autel MK808Z and got P0456 (EVAP...

Thread by: Alyssa L, Feb 25, 2026, 5 replies, in forum: Gen 4 Prius Care, Maintenance and Troubleshooting

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Hi all - first post on here. Getting this Prius ready to sell and want to clear the codes that I reasonably can. Replaced gas cap a bit ago so...

Thread by: Jgarris, Jan 3, 2026, 2 replies, in forum: Gen 2 Prius Care, Maintenance and Troubleshooting

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Hello Folks, I've been in San Diego for two years. I need to take my 2007 Prius (201K miles) in for someone to explore the P0456 small...

Thread by: Aaron Humble, Jun 13, 2024, 0 replies, in forum: Gen 2 Prius Care, Maintenance and Troubleshooting

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Good Afternoon Everyone, I have a 2010 Prius with 166K miles on the clock. I got the P3190 code and after running Dr. Pirus I replaced both the...

Thread by: GreenBeanMike, Mar 9, 2022, 2 replies, in forum: Gen 3 Prius Care, Maintenance & Troubleshooting

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Seems like a hard issue to track down root cause. Would it be wasteful to replace gas cap? The light never comes on while I am driving. What...

Thread by: MilkyWay, Nov 11, 2017, 2 replies, in forum: Gen 2 Prius Main Forum