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  1. #1
    Join Date
    Jun 2019
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    Gascap notification, P0455 & P0456 keep happening. Related?

    So on my 2008, I keep getting the Check Gascap notification.

    I also intermittently get P0455 (EVAP SYSTEM LARGE LEAK) and P0456 (EVAP SYSTEM SMALL LEAK) which I can reset with my Diablosport Intune.

    It's been driving me insane but I'm not sure where to start trying to find what's causing the issue.

    I'm wondering if these are related issues, and if maybe my car hasn't had the gas tank recall/fix and that might be the cause. Anybody else have suggestions on what to look at?

  2. #2
    Join Date
    Aug 2016
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    When mine did that, I ended up replacing the evap canister in the rear wheel well. Solved it. No more codes.

    Sent from my SM-N960U using Tapatalk
    2007 R/T, long tubes, off road mids, borla atak exhaust. Inertia cnc big valve heads, inertia raging trojan cam, D1SC procharger 6.1 srt aluminum intake, mopar performance tcm, Trufiber Carbon Fiber SRT8 hood.

  3. #3
    Join Date
    Feb 2018
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