Just to add a bit of parts number info. Bosch K Jetronic system. If you take out the inlet manifold you have to remove the injectors, that means you should fit new seal rings (couple of my old ones certainly looked dodgy). Had a bit of trouble finding replacements. Eventually sourced at the national motor factors Andrew Page (www.andrewpage.com) Part number 3430210606, cost for 6 was £7.19 inclusive. I'll add to the parts list.