sean.round Posted December 29, 2012 Share Posted December 29, 2012 Hi Guys, My 1.4 Fiesta Zetec is running really rich at the moment. I am lucky if I crack 31mpg round town, yet, get 40-41mpg on the motorway... I occasionally get the Engine Managment Light come on, which if you clear with a DTC reader, wont come back on for months on end. Error code seems to signify Lambda Sensor, but I was wondering if anyone else had any other suggestions before I fork out for them? Sean Quote Link to comment Share on other sites More sharing options...
DanGersFord Posted December 29, 2012 Share Posted December 29, 2012 Sounds like lambda sensor not giving correct air/fuel mixture hence why you're going through so much fuel. My brother had a similar problem and after changing the lambda sensor 3 times the garage he was taking it to noticed he had a big hole in his back box. After that was replaced it was fine Quote Link to comment Share on other sites More sharing options...
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