Ok, found the engine code for my 306, it's D8A. I'm suspecting a problem with the injectors as it runs rather lumpy until warm and is poor on fuel. Looking on [URL="http://www.uniteddiesel.co.uk"]www.uniteddiesel.co.uk[/URL] the code for the injectors is KCA30S42, yet looking on the injectors in my car, they seem to have KCA17S42 on them. Are these the right ones for the car, or should I trust the uniteddiesel site?