after I was getting fault codes relating to lambda sensors ( pre cat ones )
I replaced both pre cat sensors, cleared the codes then took for a drive, no more codes present in relation to the lambda sensors, then I got fault codes for fuelling adaption multiplicative bank 2 max value exceeded and ones for minimum value not reached, the codes were, p0174, p0175, p0171, I reset the adaptions using hawkeye went on another drive but still getting these fault codes up, had the maf sensor apart and cleaned, its had new spark plugs with blue magnacor leads, but still getting codes, can anyone suggest what I should look at to rectify this probem please, vehicle is a 2001 discovery v8 thor engine.

thanks in advance.