P0112 is the OBD-II generic code that the engine control module (ECM) has recorded the IAT sensor input below the expected sensor range.
What is code P0112 mean?
Intake Air Temperature Circuit Low Input
OBD-II Code P0112 is defined as a Intake Air Temperature Circuit Low Input. The Intake Air Temperature Sensor measures the rise and fall of the air temperature inside the Intake Manifold.
What causes intake air temperature sensor fault codes?
This sensor, in turn, uses a thermistor to measure the intake air temperature. If the temperature remains normal, the thermistor will have some resistance meaning the output voltage to the PCM will be below 5 volts. A P0113 OBD-II trouble code is triggered when the voltage signal to the PCM is higher.
Where is the Intake Manifold sensor located?
Zitat von Youtube: The intake air temperature sensor that's located right here on the inlet to the air filter housing very simple straightforward to get it.
Where is the intake temperature sensor usually placed?
The IAT sensor is usually located in the air intake boot, but it may also be located in the air cleaner housing or intake manifold.
How do I fix error P0112?
What repairs can fix the P0112 code?
- Repairing or replacing the IAT connector.
- Repairing or replacing the wiring as necessary.
- Replacing the IAT with a new sensor.
How is P0128 diagnosed?
The most common cause for P0128 is the engine coolant thermostat is stuck open. A simple way to diagnose this is to feel the radiator hose and monitor how hot the temperature of the coolant is when it starts flowing through the radiator hose.
How do you test an intake air temperature sensor?
Zitat von Youtube: The hotter the air the lower the output voltage. To test connect the multimeter. Read lead to battery positive and the black lead to the sensor ground wire.
What causes high intake air temperature?
Intake air temperature sensor failure. Wiring issues such as open or shorted intake air temperature sensor wiring and/or connectors. Faulty mass air flow (MAF) sensor (sometimes the IAT is integrated into the MAF) Defective intake air inlet pipe.
Can a dirty air filter cause a P0113 code?
A faulty IAT sensor is the most common cause of a P0113 code. Dirty Air Filter: A dirty air filter is the second most common cause of error code P0113. If your air filter is dirty enough to hinder airflow, your air intake system has to work harder or may receive inadequate airflow.
How do you know if your air intake sensor is bad?
Here are some of the most common symptoms of a faulty mass airflow sensor:
- The engine is very hard to start or turn over.
- The engine stalls shortly after starting.
- The engine hesitates or drags while under load or idle.
- Hesitation and jerking during acceleration.
- The engine hiccups.
- Excessively rich or lean idling.
What happens if my IAT sensor is bad?
Engine stalling, rough idling, engine stumbling, and random surges of power are commonly associated with IAT sensor failure. These are concerning symptoms, and they can only worsen with time.