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Re: ECOboost P0420 code with fairly low miles
Posted to Technical Theory Forum on 3/18/2017 3 Replies

Phil,

The P0316 is missfire detected on first start up (cold start.) I imagine you have your own service info and can see plugs and coils are a top fix. If the truck is constantly having a missfire and coming from that bank, the raw fuel could have damaged t... Login to read more.

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