p3401 fault code. Check engine light is flashing

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10-13-2014, 07:14 PM

cobbcj7

Rock Crawling

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Location: Charlotte NC

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p3401 fault code. Check engine light is flashing

I got this code today and the engine is gutless and is running rough..
It's ok at idle, but once driving the check engine starts flashing, then stops flashing once stopped..
p3401 In cylinder 1 deactivation..
What's going on here???

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10-16-2014, 07:48 AM

detroitmike

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Location: Detroit, MI

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MAF sensor?

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