Code po171, "system too lean, bank 1" 2.4 liter dodge, what do I need to replace?

cupofjoe_84

New member
Code po171, "system too lean, bank 1" 2.4 liter dodge, what do I need to replace?

I already changed the oxygen (o2) sensor and map sensor, they were not the problem. The car was running perfectly until one day it stumbled and died. It would not start after that. Now it rolls over, but acts like it is not getting gas. I will have to see how to check fuel pressure. I think the fuel filter is in with the pump. What do you think could be wrong with it?
 
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