P0098 Lincoln Code - Intake Air Temperature Sensor 2 Circuit High Voltage Bank 1
Quick Answer
The Intake Air Temperature (IAT) Sensor is a thermistor device in which resistance changes with temperature. Common causes include Faulty Intake Air Temperature 2 (IAT2) Sensor, Intake Air Temperature 2 Sensor harness is open or shorted, Intake Air Temperature 2 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
- P0098 Lincoln indicates Intake Air Temperature Sensor 2 Circuit High Voltage Bank 1.
- Common causes
- Common causes include Faulty Intake Air Temperature 2 (IAT2) Sensor, Intake Air Temperature 2 Sensor harness is open or shorted, Intake Air Temperature 2 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 P0098 Lincoln 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. The 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 airflow.
The IAT sensor provides a quicker temperature change response time than the Engine Coolant Temperature (ECT) or Cylinder Head Temperature (CHT) sensor.
Currently, there are 2 types of IAT sensors used, a stand-alone and an integrated type. Both types function the same, however, the integrated type is incorporated into the Mass Air Flow (MAF) Sensor, the Manifold Absolute Pressure and Temperature (MAPT) Sensor, or the Turbocharger Intake Pressure and Temperature (TCIPT) Sensor instead of being a stand-alone sensor.
The Intake Air Temperature 2 (IAT2) Sensor is typically located near the intake manifold and is used to measure the intake manifold temperature. The PCM uses this information to determine the air charge and provide input for various engine control functions. The IAT2 sensor may be integrated with the Manifold Absolute Pressure (MAP) Sensor.
This Diagnostic Trouble Code (DTC) is set when the IAT2 Sensor signal is greater than the self-test maximum. The IAT2 sensor maximum is 4.6 volts.
What are the Possible Causes of the DTC P0098 Lincoln?
- Faulty Intake Air Temperature 2 (IAT2) Sensor
- Intake Air Temperature 2 Sensor harness is open or shorted
- Intake Air Temperature 2 Sensor circuit poor electrical connection
How to Fix the DTC P0098 Lincoln?
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.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0098 Lincoln 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 P0098 Lincoln Code
What does the OBDII code P0098 mean for a Lincoln vehicle?
P0098 indicates that the Intake Air Temperature Sensor 2 on Bank 1 is detecting a circuit with excessively high voltage, often due to a malfunctioning sensor or wiring issue.
What are the common symptoms of code P0098 in a Lincoln?
Symptoms may include poor engine performance, reduced fuel efficiency, difficulty starting, and possibly the check engine light turning on.
What causes the P0098 code to appear on a Lincoln?
Common causes include a faulty intake air temperature sensor, damaged or corroded wiring, loose electrical connections, or a failed ECU.
How do I diagnose the P0098 code in my Lincoln?
Start by inspecting the sensor and wiring for visible damage or corrosion, check for loose connections, and use a multimeter to test the sensor’s voltage and resistance.
Can I drive my Lincoln if it shows code P0098?
While the vehicle may still be drivable, continuing to drive with this code can lead to poor performance and potential damage to other engine components.
How do I fix the P0098 code on a Lincoln?
Repairs may include replacing the intake air temperature sensor, repairing or replacing damaged wiring, cleaning connectors, or updating the ECU software if needed.
What tools are needed to troubleshoot the P0098 code in a Lincoln?
You’ll need an OBDII scanner, a multimeter, and basic hand tools to inspect and repair the sensor and wiring.
How much does it cost to fix code P0098 on a Lincoln?
Repair costs can vary but typically range from $50 to $300, depending on whether you’re replacing the sensor or addressing wiring issues.
Can a dirty air filter cause the P0098 code on a Lincoln?
A dirty air filter is unlikely to directly cause P0098, but it can affect air intake readings and should be checked during diagnosis.
Is the P0098 code common on Lincoln vehicles?
While not one of the most common codes, P0098 can occur in Lincoln vehicles, particularly if the intake air temperature sensor or wiring is worn or damaged.
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