The car has not been running right for a while, quite noisy, some times lack of power refusing to rev past 2500, when the revs hit 3000 change in tone of engine, and more revs not giving much more pace. Had codes over pressure / under pressure several times so changed filters no significant crap in the filter. White smoke on start up black smoke on hard acceleration and over run. Last week started hesitating at medium revs sounded like a petrol cars missing. Overall though very clattery. When I stripped them out they were a bit manky but not the worst the spanner monkey had seen, according to him, however internals were really manked. Checking was only £15 each, this was then waved into the cost of the refurbished injectors £130 each.