hi all this is all new to me so im going to give it a go. ive got an 05 plate old shape a4 cabriolet 1.8 t sport that seems very slow for a turbo and is crap on fuel ive pluged it in to a snap on solus pro diagnostics and its telling me boost control valve problem is this the one that is on the left hand side by the top of rad with 3 air pipes on it and a elec plug can someone please help car has not run right since i bought it a month ago
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