P142B Code - Exhaust Gas Recirculation Sensor 'D' Circuit
Quick Answer
The Powertrain Control Module (PCM) monitors the Exhaust Gas Recirculation Sensor 'D'. Common causes include Faulty Exhaust Gas Recirculation Sensor 'D', Exhaust Gas Recirculation Sensor 'D' harness is open or shorted, Exhaust Gas Recirculation Sensor 'D' 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
- P142B indicates Exhaust Gas Recirculation Sensor 'D' Circuit.
- Common causes
- Common causes include Faulty Exhaust Gas Recirculation Sensor 'D', Exhaust Gas Recirculation Sensor 'D' harness is open or shorted, Exhaust Gas Recirculation Sensor 'D' 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 P142B Description
What are the Possible Causes of the DTC P142B?
- Faulty Exhaust Gas Recirculation Sensor 'D'
- Exhaust Gas Recirculation Sensor 'D' harness is open or shorted
- Exhaust Gas Recirculation Sensor 'D' circuit poor electrical connection
How to Fix the DTC P142B?
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 P142B 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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Information for Specific Makes
- P142B Buick — Particulate Matter Sensor Control Module High Temperature
- P142B Cadillac — Particulate Matter Sensor Control Module High Temperature
- P142B Chevrolet — Particulate Matter Sensor Control Module High Temperature
- P142B Ford — Exhaust Gas Recirculation Sensor 'D' Circuit
- P142B GMC — Particulate Matter Sensor Control Module High Temperature
- P142B Lincoln — Exhaust Gas Recirculation Sensor 'D' Circuit
- P142B Mercury — Exhaust Gas Recirculation Sensor 'D' Circuit
Frequently Asked Questions about P142B Code
1. What are common symptoms of OBDII code P142B related to the Exhaust Gas Recirculation (EGR) Sensor 'D' circuit?
The common symptoms include poor engine performance, rough idling, decreased fuel efficiency, and the illumination of the check engine light.
2. What are some possible causes of OBDII code P142B?
Possible causes of this code include a faulty EGR sensor 'D', damaged wiring or connectors in the EGR circuit, a clogged EGR valve, or issues with the EGR system's operation.
3. How can I diagnose the source of OBDII code P142B?
To diagnose the source of this code, it is recommended to perform a thorough inspection of the EGR sensor 'D', check for any visible damage to wiring or connectors, test the EGR valve's functionality, and use an OBDII scanner to retrieve specific diagnostic trouble codes.
4. What are some repair tips for addressing OBDII code P142B?
Repair tips for this code may include replacing the EGR sensor 'D' if found faulty, repairing or replacing damaged wiring or connectors, cleaning or replacing a clogged EGR valve, and ensuring proper operation of the entire EGR system.
5. Is it safe to continue driving with OBDII code P142B present?
It is not recommended to continue driving with this code present, as it can lead to further engine damage and decreased performance. It is best to address the underlying issue as soon as possible.
6. Can OBDII code P142B be reset without fixing the underlying issue?
While the code can be cleared using an OBDII scanner, it is important to address the root cause of the issue to prevent it from recurring and potentially causing more severe problems in the future.
7. How much does it typically cost to repair OBDII code P142B?
The cost of repairing this code can vary depending on the specific issue causing it, the cost of parts needed for repair, and labor charges. It is recommended to consult with a professional mechanic for an accurate estimate.
8. Are there any preventive measures to avoid OBDII code P142B from occurring?
Regular maintenance of the EGR system, including cleaning the EGR valve and inspecting the sensor 'D' and wiring, can help prevent issues that lead to this code. Additionally, using high-quality fuel and following recommended maintenance schedules can aid in preventing OBDII codes from appearing.
9. Can a DIY enthusiast with basic automotive knowledge repair OBDII code P142B?
Depending on the specific issue causing the code, a DIY enthusiast with basic automotive knowledge may be able to address some aspects of the repair, such as checking and cleaning the EGR valve or inspecting wiring. However, complex issues may require professional assistance.
10. How long does it typically take to repair OBDII code P142B?
The repair time for this code can vary based on the complexity of the issue and the extent of the necessary repairs. Some repairs may be completed in a few hours, while more involved repairs could take longer. It is advisable to consult with a mechanic for a more accurate timeframe.
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