How to Know If Accelerator Pedal Sensor Is Bad
A bad accelerator pedal sensor typically shows up as jerky acceleration, throttle lag, unexpected power loss, or a check engine light. To confirm it, scan for fault codes (P0120–P0123, P2138), test reference and output voltage with a multimeter, and monitor live data with an OBD-II scanner. Your car’s accelerator pedal sensor is easy to overlook—until … Read more