Just put secondhand diesel pump on your 1.9 dti laguna does pump have to be recoded and can this be done with pump on car?

Yes, when replacing a secondhand diesel pump on a 1.9 dti Laguna, the pump typically needs to be recoded to ensure proper communication with the engine control unit (ECU). This process can often be done with the pump still on the car using specialized diagnostic equipment. However, it's essential to verify compatibility and have the right tools for the recoding process. Always consult a professional or refer to specific vehicle guidelines for best results.