have a tdci fiesta in the workshop was left in with no power plugged the computer in and no codes then found out the problem only arouse when whenever the customer removed the injectors to do the seal cause it was blowing past apararently took me some time to get the numbers off the injectors for recodeing but my verus computer wont code them dont no if they were mixed up putting them back in do they need codeing they are seimens injectors ???????