Your Check Engine light is on and you’ve got a code P2138, “Throttle/Pedal Position Sensor/Switch D/E Voltage Correlation.” What does that mean? In this video, our mechanic breaks down the P2138 code, its symptoms, including poor acceleration and reduced power mode, and shows you how to diagnose the potential causes so you know what to do to clear the code.
Check Engine Light? Weak Acceleration or Reduced Power – Code P2138
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