An illuminated or blinking ETC warning light in a modern car indicates a malfunction in the electronic throttle control. Older cars have physical linkages between the throttle pedal and the throttle ...

As you accelerate down the road and use your gas pedal to throttle in the appropriate amount of energy, you expect a smooth implementation from your foot to the motor. The electronic throttle control ...

I doubt it's the petrol, and like you reckon it could be a sensor. It would be worth cleaning the throttle body as that can sometimes cause the sort of problem you have. Disclaimer: You acknowledge ...