i bought it on sat and it was driving fine , (private sale) drove it to work on monday and it kept on cutting out ,but will restart by key or bump everytime . So took it for a diagnotic test and came up with three errors / 2 were nothing and cleared off but the other , said that there was poor or no connection with transmission could this be the problem and if so is it costly . I have cleaned all the throttle boady and it still the same .