Took the car in for the handbrake recall today and whilst there, picked up the modified plug and wiring for no. 3 injector. I fitted the new connector and wiring before I left work and well, WOW, what a difference. It's a different car now, the lumpy idle is gone and the throttle response is sharper (hasn't hurt that I cleaned out the EGR the other day either). If your 1.9 is idling slightly rough and lumpy, get the new plug put on, you'll be pleased you did. Oh and when I jumped in to start it when I'd finished, the 'Insp 1000' light came on , so back in to work tomorrow for a service lol