Def light

Discussion in 'Questions From New Drivers' started by Iemontel, Sep 17, 2024.

  1. AModelCat

    AModelCat Road Train Member

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    Not injecting DEF will not start a fire.

    Most of these systems are actually programmed to not inject any DEF into the catalyst until the DEF is thawed and the exhaust is up to temperature. The government actually allows a window of around 30 minutes after engine startup to allow the system to gain functionality without derates or codes popping up.
     
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  3. Iemontel

    Iemontel Light Load Member

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    lol your funny that was my phone auto correct you know I meant derate
     
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