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2021 Limited P200B Code

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I posted a little in another thread. 2021 Ecodiesel with 78k miles. Thew a P200b two days ago and now has an erratic idle. Dealer says it needs a new intake but they are on back order. How long can I drive it before catastrophic failure ? Will the truck continue to regen otherwise ? Dealer says it will be fine to drive and should not go into limp mode.

Thanks
 

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