Limp Mode testing

It is good practice to test the TxW for sensor failure. Any one of the 3 wires of the Pedal or Throttle TPS sensors can fail and then the TxW must react and put itself in limp mode. To test this operation lightly connect the 2 TPS sensors. After throttle setup, put the ignition on and press the pedal 50%. The throttle will open some way depending on setting. Now take the 6 wires to the 2 TPS sensors off only one at a time. Each time the throttle must fall out and go in limp mode. Limp mode means the butterfly is in rest position. If it goes fully open or fully close, then there is a wiring problem. Some single action throttle may close completely. After fixing the problem then solder the joints and cover them properly. Remember this throttle control the power of the engine and it could cause the car leaping forward and into an accident or leaving the road. So make sure wiring is done according to recommendations.