P0171 code

[gregincali]

Got a P0171 today anyone know what it is?
Thanks greg

 

[rexrunner]

171 is lean bank 1. Sooo.

Check pcv hoses for a leak
Clean maf
Stock intake? If not oiled filter require very lil oil or filter could be on too far disrupting the maf readings
Exhaust leak prior to sensor
Bad o2

 

[gregincali]

Thanks I'll check all the above