P0113 Pontiac Code - Intake Air Temperature Circuit High Input
Quick Answer
The Intake Air Temperature (IAT) sensor contains a semiconductor device which changes the resistance based on the temperature (a thermistor). Common causes include Dirty air filter, Faulty Intake Air Temperature (IAT) Sensor, Intake Air Temperature Sensor harness is open or shorted. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0113 Pontiac indicates Intake Air Temperature Circuit High Input.
- Common causes
- Common causes include Dirty air filter, Faulty Intake Air Temperature (IAT) Sensor, Intake Air Temperature Sensor harness is open or shorted.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P0113 Pontiac Description
When the intake air is cold, the sensor (thermistor) resistance is high. The PCMs signal voltage is only pulled down a small amount through the sensor to a ground; therefore, the PCM senses a high signal voltage (low temperature). When the intake air is warm, the sensor resistance is low. The signal voltage is pulled down a greater amount; therefore, the PCM senses a low signal voltage (high temperature).
When the PCM senses a signal voltage higher than the normal operating range of the sensor, this Diagnostic Trouble Code (DTC) sets.
What are the Possible Causes of the DTC P0113 Pontiac?
- Dirty air filter
- Faulty Intake Air Temperature (IAT) Sensor
- Intake Air Temperature Sensor harness is open or shorted
- Intake Air Temperature Sensor circuit poor electrical connection
- Faulty Powertrain Control Module (PCM)
How to Fix the DTC P0113 Pontiac?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0113 Pontiac code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P0113 Pontiac Code
1. What does OBDII code P0113 mean on a Pontiac?
P0113 indicates that the Powertrain Control Module (PCM) has detected a high voltage signal from the Intake Air Temperature (IAT) sensor, suggesting an abnormally high temperature reading.
2. What are the common symptoms of code P0113 in a Pontiac?
Symptoms may include poor fuel efficiency, rough idling, reduced engine power, difficulty starting, and the Check Engine Light being illuminated.
3. What causes the P0113 code to appear on a Pontiac?
Common causes include a faulty IAT sensor, a damaged or disconnected IAT sensor wiring harness, a short circuit, or a buildup of debris on the sensor.
4. Can I drive my Pontiac with the P0113 code?
While the car may still be drivable, operating it with this code can lead to poor performance and potential long-term engine issues due to improper air-fuel mixture.
5. How do I fix the P0113 code on my Pontiac?
First, check the IAT sensor and its wiring for damage or disconnection. Clean or replace the sensor if necessary and clear the code to see if it returns.
6. Where is the IAT sensor located on a Pontiac?
The IAT sensor is typically located on or near the intake manifold or integrated into the air intake tube leading to the throttle body.
7. How much does it cost to repair a P0113 code on a Pontiac?
Repair costs vary, but replacing the IAT sensor typically ranges from $50 to $150, including parts and labor.
8. Can a dirty air filter cause a P0113 code on a Pontiac?
While unlikely, a severely clogged air filter may contribute to airflow issues that could indirectly affect the IAT sensor reading.
9. What tools are needed to diagnose the P0113 code on a Pontiac?
You’ll need an OBDII scanner to read and clear the code, a digital multimeter to test the sensor and wiring, and basic tools to access the IAT sensor.
10. Will clearing the P0113 code fix the problem permanently?
Clearing the code without addressing the underlying issue will not fix the problem, and the code is likely to return. Proper diagnosis and repair are required.
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