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Thread: Cummins Code P0087 & P1012 Together.

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    Basic Member BLACK FOG's Avatar

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    Cummins Code P0087 & P1012 Together.

    2007 Dodge 6.7L have engine light on. Both these codes are occurring.

    Has an EFI Live, EGR Delete. I just shimmed the fuel relief using 2 shims. Cleared codes...

    Come right back as soon as I start engine. Any help would be greatly appreciated.


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    Basic Member Citydiesel's Avatar

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    Re: Cummins Code P0087 & P1012 Together.

    Do you have a gauge that can read rail pressure? What does it say? If not is it idling hard (sounds kinda clacky while idling)?


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