20v in s1

Anyone had any problems telling the ecu what to do when running early clocks (cable speedo, temperature light rather than gauge, no power steering) just wanted to know if any fault codes come up ect?

ecu wont care what fusebox/dash you run. ideally you should upgrade the fusebox to the later spec mk1 or later as the early blade/glass fusebox really isnt up to the job. it can barely cope with k-jet