hi there a freind of mine bought an escos form ebay a few weeks ago and the car has turned into a complete nightmere, it needed the head refitting but since this has been done it just wont run right. he has been told its got a 2wd ecu, and that is part of the problem, could this be the case?? it keeps changing the fueling and timing??. he bought the car with out looking at it and has learnt the hard way as its totally rotten as well. any help would be great