DTC P0171 Or DTC P0174: Notes
WARNING: This page is about a different car, the 2003 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Right front HO2S is identified as O2S11 and left front HO2S is identified as O2S21.
Code Definition
- DTC P0171: Right Side Fuel Trim System - Too Lean
- DTC P0174: Left Side Fuel Trim System - Too Lean