Originally Posted by hjernazian
i've been having the same problem for about a month now, i doubt it's the spark plugs, it sounds too much like an HPFP issue, unfortunately, as my dealer told me, there's nothing they can do until it spits out an error message... meaning, i get stuck in the morning on my way to work. they really should be more flexible with this, i mean they know it's a problem because they've extended the warranty to 100k miles or so.
Ask them to test the pressure on the pump, they don't have to wait until it will throw code. If they don't, take it to another dealership.