now a diesel head..
AO Silver Member
Join Date: Sep 2014
Location: United Kingdom
Not much to add other than that MAF and Lambda issues can also lead to rich running as the ecu adjusts mix to compensate for percieved incorrect ratio, did on my JTS anyway..proved when the replacement of MAF and Lambda cleared up the rich running issues, weirdly got no other maf symptoms as such and no codes either, diagnosed after failing emmisions on an MOT, CAT was fairly new having replaced the year before.
I also had a worn lobe on the exhaust camshaft which was replaced,the early manuals state 5w40 as far as I know, this was later revised to 10/60 in order to reduce oil consumption...some are of the opinion that the heavier oil does not adequately lubricate the top end and leads to the premature camshaft wear..if you are not running 10/60 switching will reduce oil consumption somewhat but as stated pluses and minuses to that solution.
all in all the JTS can be a troublesome beast, in just a year of ownership mine cost me 2k on engine related stuff, all unexpected and at the very low mileage of 31k totally unjustified..sound like you have dealt with most of it but don't be surprised if it throws a couple more 'wobblers'' before you get it sorted.
TS is a much better engine overall but must admit I did enjoy the extra torque available from the JTS over the twinnie...that said it doesn't sound nearly as good and the TS is much happier up the rev range than the JTS is.
GT blackline,Bilstien B12's and Eibach Anti roll bar kit,Quaife Diff,Autolusso performance pads, de-cat downpipe,hybrid turbo,stage one clutch,autolusso re-map, swirl flap and egr delete, leon cupra front splitter,novitec light covers,simone racing gear knob.