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P1115 Ford Code - Intake Air Temperature Sensor 2 Circuit High

Quick Answer

The P1115 Ford diagnostic trouble code (DTC) specifically refers to the Intake Air Temperature Sensor 2 Circuit High. Common causes include Faulty intake air temperature sensor 2, Wiring issue in the sensor circuit, Poor connection in the sensor circuit. 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
P1115 Ford indicates Intake Air Temperature Sensor 2 Circuit High.
Common causes
Common causes include Faulty intake air temperature sensor 2, Wiring issue in the sensor circuit, Poor connection in the sensor circuit.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P1115 Ford Description

The P1115 Ford diagnostic trouble code (DTC) specifically refers to the Intake Air Temperature Sensor 2 Circuit High. This code indicates that the engine control module (ECM) has detected a high voltage signal from the intake air temperature sensor 2. The intake air temperature sensor is responsible for measuring the temperature of the air entering the engine. This information is crucial for the ECM to adjust the air-fuel mixture to ensure optimal combustion and engine performance.

OBDII Code P1115 Ford - Intake Air Temperature Sensor 2 Circuit High
P1115 Ford Code - Intake Air Temperature Sensor 2 Circuit High

Common Causes of P1115 Ford

  1. Faulty intake air temperature sensor 2
  2. Wiring issue in the sensor circuit
  3. Poor connection in the sensor circuit
  4. Malfunctioning ECM

Symptoms of P1115 Ford

  1. Poor fuel efficiency
  2. Rough idling
  3. Hesitation during acceleration
  4. Engine misfires
  5. Vehicle going into limp mode

How to Fix P1115 Ford

  1. Begin by conducting a visual inspection of the intake air temperature sensor 2 and its wiring harness to check for any visible damage or loose connections.
  2. Use a multimeter to test the sensor's resistance and voltage output to determine if it is functioning correctly.
  3. If the sensor is faulty, replace it with a new, OEM-quality sensor.
  4. Check the wiring harness for any signs of damage or corrosion and repair or replace as needed.
  5. Clear the DTC using a scan tool and perform a test drive to ensure the code does not return.

Cost to Fix P1115 Ford

The typical cost to repair the Intake Air Temperature Sensor 2 Circuit High issue can range from $100 to $300, including parts and labor. However, prices can vary depending on the location, vehicle make and model, and the specific shop's labor rates. It's advisable to contact local repair shops for more accurate pricing information.

What does this mean?

Tech Notes for P1115 Ford

Before replacing the mass air flow sensor, try replacing the air filter and cleaning the air flow sensor with mass air flow sensor cleaner. Reset code and drive vehicle. If the code comes back, it may be necessary to replaced the mass air flow sensor. Monitor the IAT on a scan tool. Look for sudden changes in the reading when the harness is wiggled or the sensor is tapped.

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Information for Specific Ford Models

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.

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