omg whats the brake down of your bill. as soon as you read stored fault codes and get misfire and lean running that means in laymans terms no fuel getting to that cylinder so you test for trigger signal at the injector if u have a pulsing signal the injector is faulty takes no longer than half hour at my work place that £30+vat. shame you are so far from me i would have repaired your car for £30 with you getting the parts needed