P1112 2001 Ford F150 Code - Intake Air Temperature Sensor Intermittent
Quick Answer
The IAT sensor is a thermistor device in which resistance changes with temperature. Common causes include Faulty Intake Air Temperature Sensor, Intake Air Temperature Sensor harness is open or shorted, Intake Air Temperature Sensor circuit poor electrical connection. 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 2001 Ford F150 indicates Intake Air Temperature Sensor Intermittent .
- Common causes
- Common causes include Faulty Intake Air Temperature Sensor, Intake Air Temperature Sensor harness is open or shorted, Intake Air Temperature Sensor circuit poor electrical connection.
- 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 P1112 2001 Ford F150 Description
Thermistor-type sensors are considered passive sensors. A passive sensor is connected to a voltage divider network so that varying the resistance of the passive sensor causes a variation in total current flow. Voltage that is dropped across a fixed resistor in a series with the sensor resistor determines the voltage signal at the PCM. This voltage signal is equal to the reference voltage minus the voltage drop across the fixed resistor.
The IAT sensor provides air temperature information to the PCM. The PCM uses the air temperature information as a correction factor in the calculation of fuel, spark, and air flow.
The IAT sensor provides a quicker temperature change response time than the ECT or CHT sensor.
Currently there are 2 types of IAT sensors used, a stand alone, non-integrated type and an integrated type. Both types function the same, however the integrated type is incorporated into the mass air flow (MAF) sensor instead of being a stand-alone sensor.
What are the Possible Causes of the DTC P1112 2001 Ford F150?
- Faulty Intake Air Temperature Sensor
- Intake Air Temperature Sensor harness is open or shorted
- Intake Air Temperature Sensor circuit poor electrical connection
- Damaged Powertrain Control Module (PCM)
How to Fix the DTC P1112 2001 Ford F150?
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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1112 2001 Ford F150 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 P1112 2001 Ford F150 Code
1. What are the common symptoms of an Intake Air Temperature Sensor Intermittent issue (OBDII code P1112) in a 2001 Ford F150?
- Common symptoms include poor engine performance, rough idling, stalling, decreased fuel efficiency, and potential engine misfires.
2. What are the possible causes of the Intake Air Temperature Sensor Intermittent fault code in a 2001 Ford F150?
- Causes can include a faulty intake air temperature sensor, damaged wiring or connectors, loose connections, or issues with the sensor's circuit.
3. How does the Intake Air Temperature Sensor affect the engine's performance in a 2001 Ford F150?
- The intake air temperature sensor provides vital data to the engine control module for proper air-fuel mixture adjustment, timing, and overall engine performance. An intermittent issue with this sensor can lead to various performance problems.
4. Can a DIY enthusiast repair an Intake Air Temperature Sensor Intermittent issue (P1112) in a 2001 Ford F150?
- Depending on the individual's skill level, repairing this issue may be possible. It often involves locating and inspecting the sensor, wiring, and connectors for damage or loose connections, and replacing any faulty components.
5. How crucial is it to address the Intake Air Temperature Sensor Intermittent fault code in a 2001 Ford F150?
- It is essential to address this issue promptly, as it can negatively impact the vehicle's performance, fuel efficiency, and overall drivability. Ignoring the problem may lead to more severe engine issues over time.
6. Are there any temporary solutions or quick fixes for the Intake Air Temperature Sensor Intermittent fault code in a 2001 Ford F150?
- While temporary solutions like clearing the error code or resetting the engine control module may temporarily alleviate symptoms, it is crucial to diagnose and repair the root cause of the issue for a lasting fix.
7. Can weather conditions affect the Intake Air Temperature Sensor Intermittent issue in a 2001 Ford F150?
- Extreme temperatures or moisture exposure can sometimes exacerbate issues with the intake air temperature sensor, leading to intermittent faults. Ensuring proper sealing and protection of the sensor can help mitigate weather-related problems.
8. Is it recommended to drive a 2001 Ford F150 with an Intake Air Temperature Sensor Intermittent fault code (P1112)?
- While the vehicle may still be operable with this fault, it is best to address the issue promptly to prevent further damage and maintain optimal engine performance. Continued driving with unresolved faults can potentially lead to more significant issues.
9. How can I prevent future occurrences of the Intake Air Temperature Sensor Intermittent fault code in my 2001 Ford F150?
- Regular maintenance, including inspecting the sensor, wiring, and connectors for wear or damage, can help prevent future occurrences of this fault. Ensuring all components are in good condition and properly secured is key to avoiding intermittent issues.
10. Will resetting the OBDII system clear the Intake Air Temperature Sensor Intermittent fault code in a 2001 Ford F150?
- Resetting the OBDII system may clear the fault code temporarily, but if the underlying issue with the intake air temperature sensor or related components is not addressed, the code is likely to reappear. It is important to diagnose and repair the root cause of the problem for a lasting solution.
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