My past expirience with PO215 and shutdown "surge" was the result of a very small fuel leak at the oring behind the shutoff valve (SOV). Is also possible the valve itself is failing.

The SOV is the black plastic valve on the side of the IP.

The oring is avail at the dealer. Removal requires a torx bit; by removing the windsheild washer bottle you can gain sufficient access from above to remove it w/o having to pull the IM.

ps: Are you running SVO/WVO??? If so, and if also a single tank unheated system, the thicker viscosity of that oil may be causing the SOV to close more slowly than it might otherwise setting that code.

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Terry Allison
N. Calif. & Boca Chica, Panama

09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)