P1112 1997 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 1997 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 1997 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 1997 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 1997 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 1997 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 1997 Ford F150 Code
1. What are the common symptoms of an Intake Air Temperature Sensor Intermittent issue (OBDII code P1112) in a 1997 Ford F150?
The common symptoms include rough idling, poor fuel efficiency, engine stalling, and hesitation during acceleration.
2. What are the possible causes of the Intake Air Temperature Sensor Intermittent fault code on a 1997 Ford F150?
The fault code P1112 could be triggered by a faulty intake air temperature sensor, damaged wiring or connectors, or a problem with the sensor circuit.
3. How can I diagnose the Intake Air Temperature Sensor Intermittent issue on my 1997 Ford F150?
You can diagnose the issue by visually inspecting the sensor and its wiring, checking for any loose or damaged connections, and using a multimeter to test the sensor's resistance.
4. Can I drive my 1997 Ford F150 with the Intake Air Temperature Sensor Intermittent fault code?
It is not recommended to drive the vehicle with this fault code as it can lead to poor engine performance and potential damage if left unresolved.
5. How do I repair the Intake Air Temperature Sensor Intermittent issue on my 1997 Ford F150?
To repair the issue, you may need to replace the faulty intake air temperature sensor, repair any damaged wiring or connectors, and clear the fault code using an OBDII scanner.
6. Are there any DIY tips for fixing the Intake Air Temperature Sensor Intermittent issue on a 1997 Ford F150?
While some basic troubleshooting steps can be done at home, it is recommended to consult a professional mechanic for a proper diagnosis and repair of the issue.
7. Can a faulty Intake Air Temperature Sensor Intermittent cause other problems in my 1997 Ford F150?
Yes, a faulty sensor can cause additional issues such as incorrect air/fuel mixture, engine misfires, and increased emissions.
8. How much does it cost to replace the Intake Air Temperature Sensor on a 1997 Ford F150?
The cost of replacing the sensor can vary depending on the brand, labor costs, and location, but it typically ranges from $50 to $150 for the part itself.
9. Will resetting the OBDII code P1112 on my 1997 Ford F150 fix the Intake Air Temperature Sensor Intermittent issue?
Resetting the code may temporarily clear the fault, but if the underlying issue is not addressed, the code is likely to reappear once the problem persists.
10. Is the Intake Air Temperature Sensor Intermittent issue a common problem in 1997 Ford F150 vehicles?
While it may not be one of the most common issues, faulty intake air temperature sensors can occur in older vehicles like the 1997 Ford F150 due to wear and tear over time.
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