My saxo 1.1 wont go through the emmissions on the mot because off co2, I have serviced it because there was a misfire and sorted that, still wouldnt go through so I put a cat on it and its still same any ideas what to try next?
mot
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#1
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#2Lambda sensor?Fuel system cleaner,blocked air filter just some ideas.
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#3Cheers bud ill try it , monday