Wednesday, December 11, 2013
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 sensors, numbered one and two, within the vehicles emissions system.
Meaning of Failure Code
The P1130 trouble code occurs once the heated oxygen sensor, or sensors, fails to switch between reports of a rich or lean oxygen amount vented from the engines combustion chamber. This code points to either a problem with the sensors themselves or a malfunction within the emissions system.
Considerations
The sensors electrical supply may be compromised by water damage to the sensors harness, or a failure of the entire sensor.
