Having problems with your Ford F-150 ?

I have a 2004 ford f-150 heritage xlt. check engine light came on and codes are po171 and po174. my book tels me its system adaptive fuel too lean (bank1and2). how should i start my problem solving?

Posted / edited by AnonymousUser on : 14-06-2021

Answers :

Check bank 1 and bank o2 sensor wires make sure a mouse didnt chew them up most wires are soy based and them mouses chew them and make homes in the cabin filter in stuff if not you got bad o2 sensors
Repair Help & Product Troubleshooting for Ford F-150

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