gavlloyd Posted October 18, 2016 Share Posted October 18, 2016 My 2002 1.9tdi sport loses power intermittently. it will be ok for a while then about 2500 revs it wont boost and goes into limp mode. if i flick the ignition off and on it will clear for a short time. the code on the computer is 17956 can anyone help? thanks Quote Link to comment Share on other sites More sharing options...
Trevor Posted October 19, 2016 Share Posted October 19, 2016 The usual fault is where the Variable Vanes within the Turbo gum up with carbon and rather than move into position to optimise the boost, they instead stick in the one position hence the fault code and limp home. Usually caused by smoking around town and not revving engine enough to keep the Vanes from gumming up. Easiest (or rather cheapest) option is to run a cleaner through the turbo which should cure it...see link below http://www.ebay.co.uk/sch/i.html?_from=R40&_trksid=p2050601.m570.l1313.TR11.TRC1.A0.H0.Xturbo+cleaner.TRS0&_nkw=turbo+cleaner&_sacat=0 or the other option is to replace the cartridge section within the turbo which houses the Vanes....see link below http://www.audiownersclub.com/parts-results/A3-S3/Turbochargers--Parts/63707 Let us know how you get on with it Cheers Trevor Quote Link to comment Share on other sites More sharing options...
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