Engine-CodesPontiac – P0113 Pontiac

P0113 Pontiac Code - Intake Air Temperature Circuit High Input

Quick Answer

The P0113 diagnostic trouble code (DTC) for Pontiac vehicles indicates an issue with the intake air temperature (IAT) sensor circuit registering a high input. Common causes include Faulty IAT sensor, Damaged or corroded wiring/connectors, ECM malfunction. 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 Faulty IAT sensor, Damaged or corroded wiring/connectors, ECM malfunction.
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.
Table of contents Created and updated by William Orellana on Aug 19, 2024
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Code P0113 Pontiac Description

The P0113 diagnostic trouble code (DTC) for Pontiac vehicles indicates an issue with the intake air temperature (IAT) sensor circuit registering a high input. The IAT sensor is responsible for measuring the temperature of the air entering the engine, which is crucial for determining the air-fuel mixture that the engine needs for optimal performance. When the sensor detects a high input, it means that the temperature reading is outside of the normal operating range, potentially leading to incorrect fuel delivery and combustion.

OBDII Code P0113 Pontiac - Intake Air Temperature Circuit High Input
P0113 Pontiac Code - Intake Air Temperature Circuit High Input

Common Causes of P0113 Pontiac

  1. Faulty IAT sensor
  2. Damaged or corroded wiring/connectors
  3. ECM malfunction
  4. Air filter blockage restricting airflow
  5. Intake air leaks

Symptoms of P0113 Pontiac

  1. Decreased fuel efficiency
  2. Rough idling
  3. Hesitation or stalling during acceleration
  4. Engine misfires
  5. Check Engine Light illuminated on the dashboard

How to Fix P0113 Pontiac

  1. Begin by inspecting the wiring and connectors associated with the IAT sensor for any damage or corrosion. Repair or replace as needed.
  2. Test the IAT sensor using a multimeter to ensure it is functioning correctly. Replace the sensor if it is faulty.
  3. Clear the DTC and reset the ECM to see if the code returns after repairs.
  4. Check the air filter for blockages or restrictions that could affect airflow to the sensor.
  5. If the issue persists, further diagnostic testing may be necessary to pinpoint the exact cause of the high input signal.

Cost to Fix P0113 Pontiac

The typical repair costs for addressing a P0113 code on a Pontiac vehicle can vary depending on the specific cause of the issue. In general, replacing a faulty IAT sensor can range from $50 to $150, while addressing wiring or ECM problems may require additional labor costs. Overall, the total repair bill for this issue could range from $100 to $300 or more, including parts and labor. It is advisable to consult with a qualified mechanic or auto repair shop for a more accurate estimate based on your vehicle's make and model.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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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