: :But it could be an oring in an injector leaking fuel. Just depends if they have been replaced recently. They are pain to replace on the TT for sure. I used the Dremol method . Test them each ith a screw driver to your ear and if they are all clicking if so they are working. They may not be working up to par so OHM them out to be sure 12 to 14 ohm .They will fail for sure with ethanol gas. : : : : : : : :