Code Is Po175,auto Zone Determined The Fuel System For Bank 2 Was To Rich,it Seem To Be A New Oxygen Sensor Already In It,that's What The Dealer Told Me,i Was Told It Could Be The Convertors,any More Ideas?i Just Bought This Truck And Only Have A 3 Month 3,000 Mile Warranty.it,s A 1997 F-150 5.4 Liter.

 

if bank 2 is showing rich your comp. will try to lean out that bank/ meaning your plugs will show lean. if it was your cat it would show up as a cat/efficency below treshhold, but that would be your down stream o2. may be aleaky ijector, pull out all plugs, see if one is shoowng richer than others.

 

Thanks For The Advice,i'am Taking It Back To The Dealer,just Trying To Get An Idea What It Could Be If It Is Not The Sensors That Need Replacing.i Got To Get This Fixed ,because Here In Sw Pennsylvania,we Have Emission Test.thanks Alot Any More Ideas?anybody Else Have The Same Code Come Up,as I Did?(po175)

 

Any more feedback on this,would be a big help,THANKS