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    Insane electrical issues

    Should I be looking at all the lines or the bright blue and dark blue ones ....sorry man I'm new to reading these diagrams it's gonna take me some time
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    Insane electrical issues

    Truck is deleted and tuned thru efi live with proper egr delete
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    Insane electrical issues

    I'm pulling codes U0140 U1041 and U0100 all loss of communication bcm ecm and ebcm I believe are what they are for ......I've cleaned all grounds ....checked harnesses ....all looks good only thing I haven't been able to do is actually fix it ..truck will run for 5-6 minutes then all the gauges...
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    LMM stand alone codes U0140 and U0121

    How did you figure out it was the ecm ?
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    LMM: Weird coolant leak

    I have a weird coolant leak on the rear passenger side ...i have a video no idea how well itll show on here my email is [email protected] if u wanna see 08 silverado 2500hd lmm