Low mpg strange going on at mot test

[nathanc29]

Had my mot done and had problems with emissions, the mot tester stuffed a rag up my exhaust to get it hotter I think he said after about ten minutes it passed the emissions. I just wondered what this does. my mpg has slowly been going down its now on 24mpg but I do a lot of short runs.


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[nathanc29]

Alain not sure if this is relevant you can’t hold revs it deviates up and down which makes it a b**ch to pull away and an intermittent flat spot between 1500 and 2000 rpm!

Cheers for any suggestions


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[DrR]

Needs an Italian tune up by the sounds of it.