P0171 2007 Nissan Sentra

Question

What do I need to fix this problem on my car and how much it cost?

Answer 1

Hi there,

Without looking at the car it's difficult to pin point a single part to cause the code. This code can be a result of a bad mass air flow sensor, faulty front O2 sensor and an intake vacuum leak. Putting a cost on it would have to be a range, a range of $250-$700 depending on what is actually causing the code.