Throttle Position Sensor
Disconnect throttle position sensor connector. Check resistance between sensor terminals No. 1 and 4. Resistance should be 3100-7200 ohms. Check resistance between sensor terminals No. 2 and 4. Resistance should change smoothly from 340-6300 ohms (throttle closed) to 2400-11,200 ohms (throttle open). Replace sensor if resistance is not as specified.