Hi there ive had the car for a few months now and the mpg is about 24 combined with steady driving. i gave it a good service, ( oil, plugs filters, cleaned tb) and it has improved a little bit (26mpg combined) but still not right. i had my friend put it on opcom and it said it was rich and the air intake temp was 32 degrees even when it was 10 degrees outside? its not showing any errors and drives fine but still terrible on petrol. do you think it could be the Maf or Lambda? also the plugs were sooted up when i replaced them!