Ecu kit problem - automatic stop start.

Hi i am new to citreon cars , i have recently purchased a c3 1.4 2005 stop start automatic to cut the cost of fuel insurance . Anyway it had a problem with passenger doors not opening, tried all the tips on here nothing worked, so i bought an ecu kit complete with clocks, Bingo doors all work from key all lights and thing work fine , all except wont turn over eco save mode showing on clock battery light flashing, bought new battery like a div no change. do i need to get the ecu programed to car with lexia ? any help well appreciated .

Hi Geordie

Did your ECU kit include the engine ECU?

If you change the BSI (pictures here) and not the engine ECU, no programming with lexia will help the starting. You need a matched pair of BSI and ECU.

If you changed the engine ECU and a matched BSI from the same donor car, you will need to program the BSI with lexia (info here) to match your current configuration - in particular - the start stop charge and starter in the BSI to what the car has - as opposed to what the donor had.