What Is P2138 Obd2 Code - Throttle Pedal Position Sensor Issue

Experiencing a sudden loss of power or having your car stall on the highway is a terrifying situation. This error points to a serious voltage correlation issue between your throttle and pedal position sensors. Modern cars rely on a purely electronic drive by wire system instead of mechanical cables. If the redundant sensors fail to agree on the pedal position for even two seconds, the main computer throws the vehicle into a restricted limp mode to prevent unwanted acceleration. The root cause is frequently a poor electrical connection right at the throttle body rather than a completely fried computer. Cleaning the plastic pigtail connector and checking the internal plastic gears inside the throttle body cover saves you from spending money on unnecessary replacement parts.

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