1. Engine Stalling: A faulty TPS can cause the engine to stall or hesitate while driving. This happens because the sensor provides incorrect information about the throttle's position to the Engine Control Unit (ECU), leading to improper fuel and air mixture control.
2. Rough Idling: A bad TPS can disrupt the engine's idle stability. The engine may idle erratically or fluctuate, causing vibrations or a rough running condition.
3. Poor Fuel Efficiency: Incorrect TPS readings can lead to inefficient fuel usage. The ECU may not adjust the fuel injection duration and timing accurately based on the actual throttle position, resulting in higher fuel consumption.
4. Reduced Engine Performance: A faulty TPS can hinder the vehicle's acceleration and power output. The ECU relies on the TPS signal to determine the engine's load and adjust ignition timing and fuel delivery accordingly. Incorrect TPS readings result in sub-optimal engine performance.
5. Transmission Problems: In vehicles with automatic transmissions, a faulty TPS can affect shifting patterns. The ECU uses TPS signals to determine when to shift gears. Incorrect TPS readings can cause the transmission to shift gears at the wrong times or exhibit erratic shifting behavior.
6. Check Engine Light: A faulty TPS can trigger the "Check Engine" light on the vehicle's dashboard. This light indicates that there is a problem with the engine or its related systems, including the TPS.
7. Engine Surging: A bad TPS can cause the engine to surge or rev excessively when you release the accelerator pedal. This happens due to the incorrect throttle position information sent to the ECU.
8. Increased Emissions: Due to incorrect fuel and air mixture control caused by a faulty TPS, the vehicle's emissions may increase, leading to potential environmental issues.
It is important to note that the specific damage caused by a bad throttle position sensor can vary depending on the vehicle model and the extent of the sensor's malfunction. If you experience any of the symptoms mentioned above, it's advisable to have your vehicle diagnosed and the TPS replaced if necessary to avoid further damage and ensure proper engine operation.
