Hello! I am not a car person but when the light came on about half an hour after a sloppy refill of the oil chamber (not overfilled, but there was spillage from a 5 litre container as it 'burped' and this splashed, I had to start figuring out the problem. I have read here that it could be caused by a gunked up throttle. I drive a petrol (gas not diesel), ten year-old Yeti. I hope that's all it is. Ideas? Is this plausible?