I'm thinking you are on the right track. Possibly the HPFP.
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Crashton Club Coordinator
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Redbeard JCW: because fast is fun!Supporting Member
2012? I'm gonna call poor assembly/bad parts. It's under warranty. Back to the dealer with it.
HPFP hasn't been "an issue" since the late 2009 MY. Not to say that it's not the pump but the faulty pumps typically mentioned were between 2007 and 2009.