What Does Lack of Ho2s21 Switch Adaptive Fuel at Limit Mean

Vehicle sensors communicate engine performance information to a cars on board computer. This information can take the form of a diagnostic trouble code, or DTC, like the code described as "Lack of HO2S21 Switch-Adaptive Fuel at Limit." Identification The HO2S21 code, also referred to as P1130, is specific to Ford Motor Companys computer codes. It references the failure of heated oxygen