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Truck has dpf deleted and 5 in exhaust cold air for two years but just started the codes

Vehicle: 08 f350 with 6.4

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P2263 Turbo / Super charger Boost system performance

P0401 Exhaust gas recirculation (EGR) flow insuffiecent detected.

Start by looking for restriction with the EP sensor and tube.

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asked Jan 20, 2018 by Andy

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