Its not that easy to just disconect the immobiliser on the Sedona It is tied into every bloody thing. Having changed pumps on this model and never having to have either changed/or recoded the imobilizer I am highly doubtful this is the case here on what is a MK1 Sedona. Now it maybe different on the MK2 Sedona with the CRDI diesel system. I've got a supplement to the manual and it doesn't say any thing in the immobilizer section(such as it ) about it affecting the the diesel pump. I would assume that the immobilizer having got the right replys from the key and the ecu fires a connection to the pump. Anybody know anymore ?corcaighbhoy said:disconect the immobiliser altogether and see how that is, on my musso the immo works by vacum a slight leak and theres no chance it will start ,[or the immob might need coded back to the ecu ive not had any probs with the sedona so graspin at straws abit bud ].good luck mate .