tag:blogger.com,1999:blog-5391255626232385293.post4882643068085496428..comments2024-01-25T17:14:18.395+00:00Comments on Auto Industry Newsletter: Volkswagen's loss is Bosch's gainWhaddon Quarterlyhttp://www.blogger.com/profile/15965874319054447170noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-5391255626232385293.post-20930580103112008502015-10-13T17:42:47.063+01:002015-10-13T17:42:47.063+01:00Willis's assertion that cheating engines will ...Willis's assertion that cheating engines will need their 'diesel fuel injectors' changed must be regarded in the light of his repeated utterance that he was not an engineer. <br />Most powertrain engineers would think it highly unlikely that the injectors themselves would have to be changed. <br />Any injection characteristics that required alteration to cut NOx - principally timing retardation - would be tackled through electronic management control, possibly in combination with an EGR rate increase. <br />His further claim that VW engineers organising the recall action 'were under orders to ensure that fuel efficiency would not be affected' shows that Willis is living in fantasy land. <br />Unless, that is, they can successfully overcome the formidable practical and cost challenges of retrofitting SCR, with its requirement for an AdBlue tank and dosing unit as well as a bulkier silencer (to accommodate the SCR catalyst).<br /> Alan Buntingnoreply@blogger.com