P142A Buick Code - EGR Temperature Sensor 2 Intake Air Temperature 2 Not Plausible
Quick Answer
The Exhaust Gas Recirculation (EGR) Temperature Sensors are variable resistors that measure the temperature of the exhaust gas at the inlet and outlet of the EGR cooler. Common causes include Faulty Exhaust Gas Recirculation (EGR) Temperature Sensor 2, Exhaust Gas Recirculation Temperature Sensor 2 harness is open or shorted, Exhaust Gas Recirculation Temperature Sensor 2 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
- P142A Buick indicates EGR Temperature Sensor 2 Intake Air Temperature 2 Not Plausible.
- Common causes
- Common causes include Faulty Exhaust Gas Recirculation (EGR) Temperature Sensor 2, Exhaust Gas Recirculation Temperature Sensor 2 harness is open or shorted, Exhaust Gas Recirculation Temperature Sensor 2 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 P142A Buick Description
The Diagnostic Trouble Code (DTC) will be set if the ECM detects that the EGR cooler temperature sensor 1 or 2 is greater than 20°C (36°F) different from Intake Air Temperature (IAT) sensor 2.
What are the Possible Causes of the DTC P142A Buick?
- Faulty Exhaust Gas Recirculation (EGR) Temperature Sensor 2
- Exhaust Gas Recirculation Temperature Sensor 2 harness is open or shorted
- Exhaust Gas Recirculation Temperature Sensor 2 circuit poor electrical connection
How to Fix the DTC P142A Buick?
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 P142A Buick 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 P142A Buick Code
1. What are the common symptoms of OBDII code P142A in a Buick related to the EGR Temperature Sensor 2 Intake Air Temperature 2 Not Plausible?
- Common symptoms include engine misfires, rough idle, decreased fuel efficiency, and potentially a Check Engine light.
2. What are some possible causes of OBDII code P142A in a Buick indicating an issue with the EGR Temperature Sensor 2 Intake Air Temperature 2 Not Plausible?
- Causes can include a faulty EGR temperature sensor, issues with the intake air temperature sensor, wiring/connectivity problems, or a faulty ECM.
3. How can I diagnose the OBDII code P142A in my Buick related to the EGR Temperature Sensor 2 Intake Air Temperature 2 Not Plausible?
- Diagnosis typically involves using an OBDII scanner to retrieve the code, followed by inspecting the sensors, wiring, and connections for any visible damage or issues.
4. Is it safe to continue driving my Buick with the OBDII code P142A related to the EGR Temperature Sensor 2 Intake Air Temperature 2 Not Plausible?
- It is not recommended to drive the vehicle with this code as it can lead to poor engine performance and potentially cause further damage if left unresolved.
5. What are some repair tips for fixing OBDII code P142A in a Buick indicating an issue with the EGR Temperature Sensor 2 Intake Air Temperature 2 Not Plausible?
- Repair tips may include replacing the faulty sensors, checking and repairing any damaged wiring, ensuring proper connectivity, and clearing the code after repairs.
6. Can I reset the OBDII code P142A in my Buick related to the EGR Temperature Sensor 2 Intake Air Temperature 2 Not Plausible myself?
- You can attempt to reset the code using an OBDII scanner, but it is important to address the underlying issue causing the code to prevent it from recurring.
7. How much does it typically cost to repair OBDII code P142A in a Buick associated with the EGR Temperature Sensor 2 Intake Air Temperature 2 Not Plausible?
- The cost of repair can vary depending on the exact cause of the issue, but it may involve sensor replacement, wiring repairs, or ECM diagnostics, potentially ranging from $100 to $500 or more.
8. Are there any preventative measures I can take to avoid OBDII code P142A in my Buick related to the EGR Temperature Sensor 2 Intake Air Temperature 2 Not Plausible?
- Regular maintenance, such as checking and cleaning sensors, inspecting wiring, and addressing any issues promptly, can help prevent the occurrence of this code.
9. Can a DIY enthusiast with basic automotive knowledge fix OBDII code P142A in a Buick indicating an issue with the EGR Temperature Sensor 2 Intake Air Temperature 2 Not Plausible?
- Depending on the exact cause, a DIY enthusiast may be able to address this code by replacing sensors or repairing wiring, but complex issues may require professional assistance.
10. Will ignoring OBDII code P142A in my Buick related to the EGR Temperature Sensor 2 Intake Air Temperature 2 Not Plausible lead to more severe problems?
- Ignoring this code can lead to poor engine performance, decreased fuel efficiency, and potentially more severe issues over time, so it is best to address it promptly.
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