Re: Fiat Stilo, 51 reg, 1600 16v failed MOT emissions on CO Archived Message
Posted by Dave Harney on December 10, 2007, 10:48 pm, in reply to "Fiat Stilo, 51 reg, 1600 16v failed MOT emissions on CO"
Hi Martin, Are you saying rear 02 sensor is switching between 0.4 and 0.7 ? Got any live data - fuel trim figures ? Have you got a laser thermometer, to measure temp of catalyst front and rear ? Looks to me like cat is inefficient. Regards Dave
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