what does codes po171 mean for 02f150?

Question

WHAT DOES CODE PO171 MEAN FOR 02F150

Answer 1

Hi there,

P0171 mean bank 1 lean. This basically means the fuel mixture on bank one is not correct. Usually when it's a single side of the engine light this, it's a intake manifold vacuum leak or bad front O2 sensor. Since you also have a misfire code P0316 I would look for an intake leak at cylinder #6.