Hi everyone, we had a 02 fiesta 1.25 in with DTCs P2138 Accelerator pedal position sensors A and B plausibility error permanent P2135 Throttle position sensors A and B voltage correlation P2176 Throttle actuator control ( TAC ) system. I thought this must need a new pedal so I tirade to order on from the local Ford dealer but they told me they always fit a throttle sensor in the inlet manifold before they fit a pedal. So I fit one a 10 minute job and faults cleared and the car has been ok for over a month. Ford part No 1141598 cost just over £30.00 hope this helps. Martin..