Hi. I have a 2009 Range Rover Sport with 88K miles on it. Just basic traffic and no severe driving conditions. Engine light came on and went to the service shop that has worked on the car with good results. Fuel induction was done and several bottles of sea foam used. Light goes off. It won't stay off. Filled up only with premium fuel and continues to add fuel injection fluid. Mechanic says there is much carbon build up and is trying to flush it out. No other codes come up. Should I continue to drive the car with the engine light? Any other solutions?