AutoCodes – Ford – P242A Ford

P242A Ford Code - Exhaust Gas Temperature Sensor Circuit Bank 1 Sensor 3

Quick Answer

The Powertrain Control Module (PCM) continuously monitors the Exhaust Gas Temperature Sensor (EGTS) for proper circuit continuity and out of range high values. Common causes include Faulty Exhaust Gas Temperature Sensor (EGTS) Bank 1 Sensor 3, Exhaust Gas Temperature Sensor Bank 1 Sensor 3 harness is open or shorted, Exhaust Gas Temperature Sensor Bank 1 Sensor 3 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
P242A Ford indicates Exhaust Gas Temperature Sensor Circuit Bank 1 Sensor 3.
Common causes
Common causes include Faulty Exhaust Gas Temperature Sensor (EGTS) Bank 1 Sensor 3, Exhaust Gas Temperature Sensor Bank 1 Sensor 3 harness is open or shorted, Exhaust Gas Temperature Sensor Bank 1 Sensor 3 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 35,701
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jan 15, 2019
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Code P242A Ford Description

The Powertrain Control Module (PCM) continuously monitors the Exhaust Gas Temperature Sensor (EGTS) for proper circuit continuity and out of range high values. The EGTS is located in front of the Diesel Oxidation Catalyst (DOC) and/or in front of the Diesel Particulate Filter (DPF). The EGTS detects exhaust gas temperature and converts it into a voltage and feeds back to the PCM with the voltage signal in order to control engine conditions to effectively reduce emissions. The PCM sets the P242A OBDII code when the Exhaust Gas Temperature Sensor is out of factory specifications.
OBDII Code P242A Ford - Exhaust Gas Temperature Sensor Circuit Bank 1 Sensor 3 - AutoCodes.com
P242A Ford Code - Exhaust Gas Temperature Sensor Circuit Bank 1 Sensor 3

What are the Possible Causes of the DTC P242A Ford?

  • Faulty Exhaust Gas Temperature Sensor (EGTS) Bank 1 Sensor 3
  • Exhaust Gas Temperature Sensor Bank 1 Sensor 3 harness is open or shorted
  • Exhaust Gas Temperature Sensor Bank 1 Sensor 3 circuit poor electrical connection
  • Exhaust leaks
  • Excessive particulate matter buildup on sensor

How to Fix the DTC P242A Ford?

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 P242A Ford 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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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 P242A Ford Code

1. What are the common symptoms of OBDII code P242A in a Ford vehicle?

- Common symptoms include reduced engine performance, decreased fuel efficiency, and the illumination of the check engine light.

2. What causes the OBDII code P242A in a Ford related to the Exhaust Gas Temperature Sensor Circuit Bank 1 Sensor 3?

- The code P242A is typically triggered by a faulty exhaust gas temperature sensor or issues with the sensor circuit, such as wiring problems or sensor connection issues.

3. How can I diagnose the OBDII code P242A on my Ford vehicle?

- Diagnosing the code P242A involves using an OBDII scanner to retrieve the specific fault code, inspecting the exhaust gas temperature sensor, checking the sensor wiring for damage, and testing the sensor's resistance.

4. Can I continue driving my Ford with the OBDII code P242A present?

- It is not recommended to drive your vehicle with the OBDII code P242A active, as it can lead to further damage to the engine components and may result in decreased performance and fuel efficiency.

5. How can I repair the OBDII code P242A in my Ford?

- Repairing the code P242A may involve replacing the faulty exhaust gas temperature sensor, repairing damaged wiring or connections, clearing the fault code with an OBDII scanner, and performing a test drive to ensure the issue is resolved.

6. Are there any DIY tips for fixing the OBDII code P242A on my Ford?

- DIY tips for addressing the code P242A may include checking for loose or damaged sensor connections, inspecting the sensor wiring for breaks or corrosion, and ensuring the sensor is securely mounted in the exhaust system.

7. How critical is it to address the OBDII code P242A promptly in my Ford?

- It is essential to address the code P242A promptly to prevent potential engine damage, ensure optimal fuel efficiency, and maintain overall vehicle performance.

8. Is the OBDII code P242A specific to Ford vehicles only?

- While the OBDII code P242A is associated with Ford vehicles, similar codes related to exhaust gas temperature sensor circuit issues may be present in other vehicle makes and models as well.

9. Can weather conditions impact the triggering of the OBDII code P242A in a Ford?

- Extreme weather conditions, such as excessive heat or moisture, can potentially impact the exhaust gas temperature sensor's performance and contribute to the triggering of the code P242A in a Ford vehicle.

10. Will resetting the check engine light resolve the OBDII code P242A issue in my Ford?

- Resetting the check engine light may temporarily clear the code P242A, but it is crucial to diagnose and address the underlying issue causing the fault code to prevent its reoccurrence.

1. What are the common symptoms of a P242A Ford OBDII code?

- Common symptoms include the Check Engine Light illuminating, reduced engine performance, and potential issues with the exhaust system.

2. What does the P242A Ford code indicate?

- The P242A code indicates a problem with the Exhaust Gas Temperature Sensor Circuit Bank 1 Sensor 3 in the vehicle.

3. What are possible causes of the P242A Ford code?

- Possible causes include a faulty exhaust gas temperature sensor, wiring issues, sensor circuit problems, or a malfunctioning powertrain control module.

4. How can I diagnose the cause of a P242A Ford code?

- Diagnosis typically involves using an OBDII scanner to read the code, inspecting the exhaust gas temperature sensor and its wiring, and checking for any related issues in the circuit.

5. Can I continue driving with a P242A Ford OBDII code?

- It is not recommended to continue driving with a P242A code, as it can lead to decreased performance and potential damage to the vehicle's exhaust system.

6. How do I repair a P242A Ford OBDII code?

- Repairing a P242A code may involve replacing the faulty exhaust gas temperature sensor, repairing any damaged wiring, or addressing issues with the sensor circuit.

7. Are there any DIY tips for fixing a P242A Ford code?

- DIY tips include checking the sensor connection for any loose or damaged wires, ensuring proper sensor placement, and clearing the code with an OBDII scanner after making any repairs.

8. Can a P242A Ford code be intermittent?

- Yes, a P242A code can sometimes be intermittent, meaning it may come and go depending on the specific conditions or issues triggering the fault.

9. How can I prevent a P242A Ford OBDII code from recurring?

- To prevent the P242A code from recurring, it's essential to address any underlying issues promptly, perform regular maintenance on the vehicle, and ensure proper installation of components.

10. Is it necessary to reset the Check Engine Light after fixing a P242A Ford code?

- Yes, it is recommended to reset the Check Engine Light using an OBDII scanner after fixing a P242A code to clear the error code and ensure proper monitoring of the vehicle's system.

Discuss the causes and fixes for P242A Ford OBDII Code

  • I have replaced sensor twice each time with in 2 miles need a new one
    Light stays on makes no sense

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