Check engine light on
PO171 PO174 error codes
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The codes indicate a fuel too lean in Banks 1 & 2 problem.
This is usually either an airflow problem (too much air) or too little fuel getting to the engine.
Here's a video that shows how to check if the MAF (mass air flow) sensor is OK or not.
If it's a fuel problem it could be a clogged fuel filter or a fuel pump problem - low pressure
Hopefully a start to find out what's wrong.
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