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P1112 Ford Code - Intake Air Temperature Sensor Intermittent Condition

Quick Answer

The P1112 Ford code indicates an intermittent condition with the Intake Air Temperature (IAT) sensor. Common causes include Faulty Intake Air Temperature sensor, Damaged wiring or connectors, Contaminated or dirty sensor. 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
P1112 Ford indicates Intake Air Temperature Sensor Intermittent Condition.
Common causes
Common causes include Faulty Intake Air Temperature sensor, Damaged wiring or connectors, Contaminated or dirty sensor.
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 12, 2024
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Code P1112 Ford Description

The P1112 Ford code indicates an intermittent condition with the Intake Air Temperature (IAT) sensor. The IAT sensor is responsible for measuring the temperature of the air entering the engine. This information is crucial for the engine control module (ECM) to adjust the air-fuel mixture ratio and ignition timing to optimize engine performance and fuel efficiency. An intermittent condition means that the sensor is not providing consistent or accurate readings, which can lead to a variety of issues with the vehicle's performance.

OBDII Code P1112 Ford - Intake Air Temperature Sensor Intermittent Condition
P1112 Ford Code - Intake Air Temperature Sensor Intermittent Condition

Common Causes of P1112 Ford

  1. Faulty Intake Air Temperature sensor
  2. Damaged wiring or connectors
  3. Contaminated or dirty sensor
  4. ECM malfunction

Symptoms of P1112 Ford

  1. Rough idling or stalling
  2. Decreased fuel efficiency
  3. Hesitation or lack of power during acceleration
  4. Increased emissions
  5. Engine knocking

How to Fix P1112 Ford

  1. Begin by identifying the location of the IAT sensor in the intake system.
  2. Inspect the sensor, wiring, and connectors for any visible damage or contamination.
  3. Test the sensor using a multimeter to check for proper resistance and voltage output.
  4. If the sensor is faulty, replace it with a new one, ensuring proper installation and connection.
  5. Clear the diagnostic trouble codes from the ECM and test drive the vehicle to verify that the issue has been resolved.

Cost to Fix P1112 Ford

The cost of repairing the P1112 Ford code can vary depending on the specific cause of the issue and the cost of parts and labor. On average, the repair for an Intake Air Temperature sensor replacement can range from $100 to $200 for parts, with additional costs for labor. The total repair cost, including diagnosis time and labor rates, can range from $150 to $400. It's important to note that the actual cost may vary based on the location, vehicle make and model, and the specific repair shop, so it's recommended to obtain a detailed estimate from a qualified mechanic.

What does this mean?

Tech Notes for P1112 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.

Frequently Asked Questions about P1112 Ford Code

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  • HI my name is darren I have a lincoln town car 2003 and I have a code of po113 is this the same thing as code po1112 can you please help me out with this issue

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