Mercury Sable 2001 code p0175
 

so basically my problem is i am receiving a p0175 code which i found out is either o2 sensor or maf sensor. i was wondering if anyone had any info on this. one this i was worried about is the vaccuum line that goes into the air intake tube is broken and i taped it back up so it is leaking a little bit. could this cause a light to go on for the maf sensor since too much air is being introduced into the engine? anyone with info plz respond.