Having problems with your 2004 mercury mountaineer ?

i need to know which is bank one and bank 2 located on the top or the bottom

my truck failed the aims test with the code of P0171 I replaced both of the oxygen sensors on the top now its saying I failed again with the code of P0172 Posted / edited by AnonymousUser on : 11-12-2017

Answers :

Repair Help & Product Troubleshooting for 2004 mercury mountaineer

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