Fit a cat, fit a sensor

21 October 2013  

When you replace a catalytic convertor you should always fit a new NTK Lambda sensor too, says NGK Spark Plugs. The reason being, a worn or failed sensor will reduce control of the fuelling system and lead to increased fuel consumption, uneven running and poor performance. Spokesman Tim Howes says: “The impending Euro 6 emission limits are particularly tough for diesel engines and considerable R&D is going on to develop cost effective ways of meeting the targets.” Howes continues: “Even now complex exhaust gas after treatment requiring strict and accurate monitoring is the norm. This usually necessitates multiple temperature, pressure and gas constituent sensor deployment. There has been a considerable increase in the use of NTK wide band oxygen sensors on later diesel passenger cars.”