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Third Generation Duramax Electronics/Tuners Discuss 2006-2007.5 LBZ & LLY Duramax engine electronic upgrades including chips, tuners, programmers, etc.

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Old 01-10-2013, 06:41 PM   #1 (permalink)
DIESAHL
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Po402

i have a predator tuner on the 40hp setting and i am getting a PO402 code every now and again. and also when i go to plug in my predator do i really have to take out the 3 fuses they say too?

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Old 01-10-2013, 07:44 PM   #2 (permalink)
LWATSON
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That code is an EGR related code and as far as the fuses go I've flashed my LBZ with a Predator, PPE xcelerator and EFI live probably a couple hundred times total and never removed the fuses. Just turn the fan, radio, lights etc. off and you'll be fine.

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Last edited by LWATSON; 01-10-2013 at 07:44 PM.
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