97 ranger a/t 4.0 codes 171/174

Our Community is 662,000 Strong. Join Us.

Please Register or Login to access:

zingalie

08-30-2005, 02:14 PM

have codes 171 and 174 lean bank 1 and 2.
o2 sensors? if so whichc ones and if not where should i be looking?
thanks.
chuck :confused:

rivguy

09-06-2005, 02:44 PM

no O2 - this is both banks lean - look for any vacume leaks and clean the mass air flow sensor