Swampy442 Posted December 1, 2012 Share Posted December 1, 2012 My brothers LS400 failed the MOT on emissions with a Lambda reading of 1.067 (limit is 1.03). Tested the O2 sensors via the diagnostic port and one of them was duff, so replaced it and got a re-test and it still failed. Anybody have any ideas how to bring the lambda down? Readings were :- CO - 0.037% HC - 16ppm Lambda - 1.067 Thanks in advance Quote Link to comment Share on other sites More sharing options...
skippyboyo1 Posted December 1, 2012 Share Posted December 1, 2012 Redex? Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted December 1, 2012 Author Share Posted December 1, 2012 Bit of research reveals that theres too much oxygen in the gas, time to check the exhaust system. Quote Link to comment Share on other sites More sharing options...
Nikue Posted December 1, 2012 Share Posted December 1, 2012 PowerBoost Job Done Quote Link to comment Share on other sites More sharing options...
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