DTC P0172 Or DTC P0175: 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. Left front HO2S is identified as O2S21.

Code Definition

DTC P0172: Right Side Fuel Trim System - Too Rich
DTC P0175: Left Side Fuel Trim System - Too Rich