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Code P0113

Symptoms

• Check Engine Light illuminated

• Poor fuel economy

• Engine may run rough

• Reduced engine performance

Common Causes

• Faulty IAT sensor

• Open or shorted IAT sensor wiring

• Poor electrical connection to the IAT sensor

• Faulty ECM

Glossary

IAT: Intake Air Temperature

ECM: Engine Control Module

Related Codes

• P0112

• P0114

Official description

Intake Air Temperature Sensor 1 Circuit High Bank 1

Laymans terms

Your car has a sensor that checks how hot or cold the air going into the engine is. This code means the sensor is saying the air is much hotter than it should be.

Explanation

The P0113 code indicates that the signal from the Intake Air Temperature (IAT) sensor is higher than expected, suggesting a possible open circuit or sensor fault.

Technical description

The Intake Air Temperature (IAT) sensor measures the temperature of the air entering the engine. The Engine Control Module (ECM) uses this information to optimize fuel delivery and ignition timing. A 'circuit high' condition means the sensor is reporting a higher voltage than normal, often due to an open circuit or faulty sensor.

Diagnosis steps

• Use an OBD-II scanner to verify the P0113 code.

• Inspect the IAT sensor and its wiring for damage.

• Check the electrical connections for corrosion or looseness.

• Test the IAT sensor with a multimeter.

Repair procedures

• Replace the faulty IAT sensor.

• Repair or replace damaged wiring or connectors.

• Clear the code and test drive to ensure the issue is resolved.

Tools required

• OBD-II scanner

• Multimeter

• Basic hand tools

Estimated repair cost

$50 - $200

Difficulty level

Moderate

Commonly affected vehicles

• Ford F-150

• Chevrolet Silverado

• Toyota Camry

Preventive measures

• Regularly inspect and maintain sensor wiring.

• Keep engine bay clean to prevent sensor damage.

• Perform routine vehicle diagnostics.

Error code type

Sensor Issue

User experience recommendations

• Avoid driving with the Check Engine Light on for extended periods.

• Consult a professional mechanic if unsure about repairs.

Warranty information

Check with your vehicle manufacturer for specific warranty coverage on sensors.

Historical data

The P0113 code has been a common diagnostic trouble code for many years, often associated with sensor or wiring issues.

Urgency level

Moderate – While the car may still be drivable, ignoring this issue can lead to poor performance and fuel economy.

Legal and safety notice

Driving with a malfunctioning sensor can lead to increased emissions and may not comply with local emission laws.

Testing conditions

• Engine at operating temperature

• Ambient temperature within normal range

Component location

The IAT sensor is typically located in the intake manifold or air intake hose.

FAQs

Q: Can I drive my car with a P0113 code?
A: Yes, but it is not recommended for long periods as it may affect performance and fuel economy.

Q: How can I reset the P0113 code?
A: You can reset the code using an OBD-II scanner after addressing the underlying issue.

Last updated: Oct 28, 2025 • Source: internal database
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