hi
my little puma just squeezed through the mot ,the mixture was very high 4.9%
so i turned it down ,so it passed the mot but i went to turn it back up and wouldnt adjust?
then my co went to 7% and is stuck there now

so im looking for another ecu

or

information so that i can change the pot in my ecu ?
so has anybody ever done this ?
and what spec is the pot in the ecu ?

any help would be appriciated

thanks