Q: Good day

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I have a 2007 toyota yaris/vitz, car drives on low speeds but whenever i press the accelerator the CEL flashes and the car does not speed. What seems to be the problem?

My car has 60000 miles.
My car has an automatic transmission.

Hi There, It sounds like you are describing the symptoms of a failing throttle position sensor. The throttle position sensor monitors the throttle position of the throttle plate inside the throttle body in relation to your foot position on the gas pedal. Based upon the inputs from the sensor reading your foot’s position on the pedal, the ECU then makes the direction to supply more or less fuel to the motor. When this sensor is not working properly, this can cause intermittent responses when pressing the gas pedal. I would suggest having a professional from Your Mechanic come to you home to diagnose and inspect your vehicle.

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