P2121 2008 Ford Mondeo - TPS replaced, what to do next

Question

There is dtc code P2121, the trottle posision sensor had replaced. The dtc P2121 came back after day.

Answer 1

Hi there,

This code is for the pedal position sensor on the gas pedal, not the TPS on the throttle body. It's likely there could be a wiring issue or the sensor itself has gone bad.
P2121 FORD - Throttle/Pedal Position Sensor/Switch 'D' Circuit Range/Performance

Read more: https://www.autocodes.com/p2121_ford.html