Acura
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Intake air temperature (IAT) sensor - circuit/ intermittent voltage low
Cause:
    Wiring, IAT sensor

Audi
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Heated oxygen sensor (HO2S) control, Bank 1 - system too rich
Cause:
    Excessive fuel in engine oil, injector leaking, fuel pressure, EVAP canister purge valve, MAP sensor, MAF sensor, HO2S

Ford
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    IAT Sensor (Intermittent) Conditions
Cause:
    Engine running, then the PCM detected an intermittent condition in the IAT sensor signal Scan Tool Tips Select the IAT PID and monitor the signal for sudden changes

GM
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    IAT Sensor Circuit Intermittent Low Input Conditions
Cause:
    No VSS codes set, engine runtime over 100 seconds, VSS input more than 2 mph, then the VCM detected an intermittent IAT sensor input that was less than a calibrated voltage for 1 second.

Honda
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Intake air temperature (IAT) sensor - circuit/ intermittent voltage low
Cause:
    Wiring, IAT sensor

Isuzu
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Intake air temperature (IAT) sensor - circuit/ intermittent voltage low
Cause:
    Wiring, IAT sensor, ECM

Mazda
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Intake air temperature (IAT) sensor - intermittent sensing
Cause:
    Wiring, IAT sensor, ECM

Subaru
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Barometric pressure (BARO) sensor - range/ performance problem
Cause:
    Wiring, BARO sensor, ECM

Volkswagen
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Heated oxygen sensor (HO2S) control, system too rich
Cause:
    Excessive fuel in engine oil, injector leaking, fuel pressure, EVAP canister purge valve, MAF sensor, HO2S