P0171 indicates that your kia telluride is either getting too much air or not enough fuel What does the p0171 system too lean (bank 1) mean (the mixture ratio is too lean.) dirty air filter of faulty air flow sensor are common causes for.
P0171 – Fuel system too lean — Symptoms, Causes & Fix
There's too much air or not enough fuel
The ecu detected that it cannot add enough fuel to maintain the correct 14.7:1 stoichiometric ratio,.
This video breaks down what system too lean bank 1 really means and reveals the most common causes—from vacuum leaks and dirty. In this video, we break down what p0171 means, the most common symptoms, causes, and simple fixes you can try before going to a mechanic.
