P242E Mercury Code - Exhaust Gas Temperature Sensor Circuit Intermittent/Erratic 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
- P242E Mercury indicates Exhaust Gas Temperature Sensor Circuit Intermittent/Erratic 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.
Code P242E Mercury Description
What are the Possible Causes of the DTC P242E Mercury?
- 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 P242E Mercury?
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 P242E Mercury 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.
Need more information about the P242E Mercury code?
Need more information on how to fix the P242E Mercury code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P242E Mercury code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P242E Mercury Code
1. What are common symptoms of OBDII code P242E in a Mercury vehicle?
- Common symptoms include decreased fuel efficiency, rough idling, check engine light illumination, and potential issues with emissions testing.
2. What can cause the OBDII code P242E to trigger in a Mercury?
- This code is typically triggered by a malfunction in the exhaust gas temperature sensor circuit for Bank 1 Sensor 3, which could be caused by sensor failure, wiring issues, or a faulty connector.
3. How serious is the OBDII code P242E in a Mercury?
- While the code may not cause immediate drivability issues, it can affect the vehicle's performance and emissions. It is recommended to address the underlying problem promptly to prevent further damage.
4. Can I continue driving my Mercury with the OBDII code P242E present?
- It is not recommended to ignore the code and continue driving the vehicle, as it can lead to decreased fuel efficiency and potential damage to the catalytic converter and other components over time.
5. How can I diagnose and repair the OBDII code P242E in my Mercury?
- Diagnosis typically involves inspecting the exhaust gas temperature sensor, checking the wiring for damage, and testing the sensor's resistance. Repair may involve replacing the sensor, repairing wiring issues, or addressing faulty connectors.
6. Is it possible to reset the OBDII code P242E in a Mercury without fixing the underlying issue?
- While clearing the code may temporarily turn off the check engine light, it will not solve the underlying problem causing the code to trigger. The issue should be diagnosed and repaired to prevent recurrence.
7. Are there any preventative maintenance tips to avoid OBDII code P242E in a Mercury?
- Regularly inspecting the exhaust system components, including the exhaust gas temperature sensor, and addressing any issues promptly can help prevent the code from triggering.
8. Can a DIY enthusiast address the OBDII code P242E in a Mercury, or is professional help required?
- Depending on your experience and tools available, you may be able to diagnose and repair the issue yourself. However, if you are unsure or unfamiliar with automotive repairs, it is recommended to seek professional assistance.
9. How long does it typically take to repair the OBDII code P242E in a Mercury?
- The repair time can vary based on the exact cause of the issue and your experience level. It can range from a quick sensor replacement to more extensive troubleshooting for wiring or connector problems.
10. Will fixing the OBDII code P242E in my Mercury improve its performance?
- Addressing the underlying issue causing the code to trigger can improve the vehicle's performance, fuel efficiency, and emissions compliance, leading to a smoother driving experience.
Discuss the causes and fixes for P242E Mercury OBDII Code
Code P242E Mercury comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
