P0098 - Intake Air Temperature Sensor 2 - Circuit High
Intake Air Temperature is monitored to allow the ECM to accurately adjust fueling and emission control systems as the temperature directly affects the air density
Fault Code Explained
The ECM has detected that the sensor output is above it’s maximum operating parameter or is higher than expected for the current operating conditions.
If possible use a diagnostic computer to view live data readings for the sensor and compare to actual air temperature. Test sensor supply Voltage and output signal, it is possible that the output signal is shorted to positive.