P1114 1999 Ford F150 Code - Intake Air Temperature Sensor 2 Circuit Low
Quick Answer
The IAT sensor is a thermistor device in which resistance changes with temperature. Common causes include Faulty Intake Air Temperature Sensor 2, Intake Air Temperature Sensor 2 harness is open or shorted, Intake Air Temperature Sensor 2 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
- P1114 1999 Ford F150 indicates Intake Air Temperature Sensor 2 Circuit Low.
- Common causes
- Common causes include Faulty Intake Air Temperature Sensor 2, Intake Air Temperature Sensor 2 harness is open or shorted, Intake Air Temperature Sensor 2 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 P1114 1999 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 P1114 1999 Ford F150?
- Faulty Intake Air Temperature Sensor 2
- Intake Air Temperature Sensor 2 harness is open or shorted
- Intake Air Temperature Sensor 2 circuit poor electrical connection
- Damaged Powertrain Control Module (PCM)
How to Fix the DTC P1114 1999 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 P1114 1999 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 P1114 1999 Ford F150 Code
1. What does the OBDII code P1114 mean on a 1999 Ford F150?
P1114 indicates a problem with the Intake Air Temperature (IAT) Sensor 2 circuit, specifically a low voltage signal being detected by the engine control module (ECM).
2. What are the common symptoms of the P1114 code?
Common symptoms include reduced engine performance, rough idling, poor fuel efficiency, and possibly the check engine light being illuminated.
3. What causes the P1114 code on a 1999 Ford F150?
The most common causes are a faulty IAT sensor, damaged wiring or connectors, a short circuit, or issues with the ECM.
4. Where is the Intake Air Temperature Sensor 2 located on a 1999 Ford F150?
The IAT Sensor 2 is typically located near the air intake system, often integrated into the air filter housing or intake manifold.
5. Can I drive my 1999 Ford F150 with the P1114 code?
While the vehicle may still run, it’s not recommended to drive with this code for an extended period as it can cause poor performance and potential engine damage.
6. How do I fix the P1114 code on my 1999 Ford F150?
Start by inspecting the IAT sensor and its wiring for damage. Replace the sensor if faulty, repair any damaged wires, and clear the code to see if it returns.
7. How do I test the Intake Air Temperature Sensor 2?
Use a multimeter to check the sensor's resistance. Compare the readings to the manufacturer’s specifications to determine if the sensor is functioning properly.
8. Can a dirty air intake system trigger the P1114 code?
Yes, a dirty or clogged air intake system can affect the IAT sensor’s readings, leading to the P1114 code.
9. How much does it cost to repair a P1114 code on a 1999 Ford F150?
Repair costs vary, but replacing the IAT sensor typically costs between $50 and $150, plus labor if done by a mechanic.
10. Will clearing the code fix the problem permanently?
No, clearing the code will only remove it temporarily. The underlying issue must be resolved to prevent the code from returning.
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