My engine management light keeps coming on (then switching itself off a couple of days later) but its currently in the garage getting a boot catch replaced and they have informed me this is because the engine is running lean. (They only ran a initial diagnostic, they don't know why and i'm not prepaired to pay loads to fix it just before xmas!)
On the MOT it almost failed on emissions until they put cleaning agent through the engine. I think the 2 are related. Any other people had issues with this and the cause and possible fix?