Maf fault code 23 keeps showing help ????
 

Maf fault code 23 keeps showing with diagnostic check under dash, replaced with brand new genuine maf sensor and reset ecu, took out for test drive and there was still slight hesitation on light throttle check fault codes again and code 23 showing again, every time I reset and road test if it hesitates on light throttle it brings fault code 23 up any ideas please ??????