2 codes that came up on my aum a3 2003 1.8t, the only problems with the car at the moment it ticks over a little rough and the temperature gauge is showing 60 70 80 90 all the time but never stays at 90, this is the thermostat i think which is being changed on saturday. also when driving today it is a bit jumpy now and then, i am going to clean throttle body in a hour or so but thought id check on hear first, would this be a good thing to do if idels rough and abit jumpy? cheers tom