Have now had the report from the garage, The problem is with injector 2 it's the electrical part of the injector gone bad having a new injector fitted part ordered for tomorrow. Here's hoping, he did mention it was showing the odd miss fire on other cylinders, so maybe have all removed & tested a bit later if no 2 injector works fine, he also said if I do have the others out it might be worth have a walnut blast on the intake & exhaust valves to clear any carbon as car has done 180k. Has anyone got any thoughts on that?