lambda light flashing T4 clocks

following changing my T4 instrument clocks due to faulty fuel gauge. everything is working perfectly except that the Lambda light now flashes with 3 sec, intervals. veh Performance is unaffected and excellent. Can anyone tell me why/ suggest a solution.. this does not happen on re-fitting my orig clocks. only when a set of clocks from another veh. is fitted. the clocks I have are identical in every way, number codes / features etc.. any help appreciated cheers Pml05

Hi, Have you tried fitting the new one, disconnecting the battery for 30 minutes and then seeing if the lambda light still flashes. If you have a code reader (or access to one) and the issue still pops up then check for codes.. It may also be that you might need a dealer to software update or some such to get the new instruments working Ok.. Des. . . ;)

I havn't disconnected bat yet but will do that first thanks