P242B Mercury Code - Exhaust Gas Temperature Sensor Circuit Range/Performance 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
- P242B Mercury indicates Exhaust Gas Temperature Sensor Circuit Range/Performance 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 P242B Mercury Description
What are the Possible Causes of the DTC P242B 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 P242B 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 P242B 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.
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Frequently Asked Questions about P242B Mercury Code
1. What are common symptoms of the OBDII code P242B in a Mercury?
- Common symptoms include reduced engine performance, increased fuel consumption, and the illumination of the check engine light.
2. What can cause the OBDII code P242B to trigger in a Mercury?
- The code P242B is typically triggered by issues with the exhaust gas temperature sensor circuit in Bank 1 Sensor 3, such as sensor failure, wiring issues, or a faulty control module.
3. How can I diagnose the OBDII code P242B in my Mercury?
- Diagnosing the code P242B involves using an OBDII scanner to retrieve the fault code, inspecting the exhaust gas temperature sensor and its wiring, and testing the sensor's resistance and voltage.
4. Can driving with the OBDII code P242B in a Mercury cause further damage?
- Continuing to drive with the code P242B may result in reduced engine efficiency and potential damage to the catalytic converter over time, so it is recommended to address the issue promptly.
5. What is the repair process for the OBDII code P242B in a Mercury?
- Repairing the code P242B involves replacing the faulty exhaust gas temperature sensor in Bank 1 Sensor 3, repairing any damaged wiring, and clearing the fault code with an OBDII scanner.
6. Are there any DIY tips for fixing the OBDII code P242B in a Mercury?
- DIY enthusiasts with some mechanical knowledge can attempt to replace the exhaust gas temperature sensor themselves, but it is recommended to consult a professional if unsure.
7. How much does it typically cost to repair the OBDII code P242B in a Mercury?
- The cost of repairing the code P242B can vary depending on the specific issue, but it may range from $100 to $300 for parts and labor at a repair shop.
8. Can a faulty exhaust gas temperature sensor affect my Mercury's emissions?
- Yes, a faulty exhaust gas temperature sensor can lead to incorrect emissions readings and potentially cause the vehicle to fail emissions tests.
9. Is it safe to continue driving my Mercury with the check engine light on due to the OBDII code P242B?
- While it may be safe to drive in the short term, it is recommended to address the issue promptly to prevent potential engine damage and ensure optimal performance.
10. How long does it take to repair the OBDII code P242B in a Mercury?
- The repair time for the code P242B can vary depending on the extent of the issue and the availability of parts, but it typically takes 1-2 hours at a repair shop.
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