eng runs good, p0171& p0174 eng lite comes on about every 3-6 mls after reset

What is your question?

123K miles new fuel pump/filters new air cleaner replaced defective maf sensor 3 mo ago, eng lite ok, back on now with same codes p0171 & p0174 (right/left banks. 1/8 tank fuel (I always use shell premium) my choice. why does eng lite keep coming on? do i need to update computer or reboot?....... SOS