How do i fix/get rid of code p0171 in my 2001 toyota corolla

Question

I was making a heavy fast left turn and I just got it

Answer 1

HI there

This code is for a lean fuel mixture on bank 1. This can be caused by vacuum leaks, a faulty front O2 sensor or low fuel pressure. This is a long term code that doesn't just pop up quickly. This code occurs after the vehicle has been driven with a lean condition for a long time.