P146E Buick Code - EVAP Purge System Pressure Sensor Circuit High Voltage
Quick Answer
The EVAP Purge System Pressure Sensor is a 3-wire piezo-resistive pressure transducer integrated into the Evaporative Emission Purge Pump. Common causes include Faulty Evaporative Emission Purge Pump, Evaporative Emission Purge Pump harness is open or shorted, Evaporative Emission Purge Pump 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
- P146E Buick indicates EVAP Purge System Pressure Sensor Circuit High Voltage.
- Common causes
- Common causes include Faulty Evaporative Emission Purge Pump, Evaporative Emission Purge Pump harness is open or shorted, Evaporative Emission Purge Pump 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 P146E Buick Description
What are the Possible Causes of the DTC P146E Buick?
- Faulty Evaporative Emission Purge Pump
- Evaporative Emission Purge Pump harness is open or shorted
- Evaporative Emission Purge Pump circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P146E 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 P146E 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.
Need more information about the P146E Buick code?
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Need Help with the Code?
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Frequently Asked Questions about P146E Buick Code
1. What are the common symptoms of OBDII code P146E in a Buick related to the EVAP system?
The common symptoms include the check engine light turning on, rough idling, decreased fuel efficiency, and potential difficulty starting the vehicle.
2. What does the OBDII code P146E Buick signify in terms of the EVAP system?
This code indicates a high voltage condition in the EVAP Purge System Pressure Sensor circuit, meaning there may be an issue with the sensor or its circuitry.
3. What are the possible causes of OBDII code P146E in a Buick's EVAP system?
Possible causes include a faulty EVAP Purge System Pressure Sensor, damaged wiring or connectors in the sensor circuit, a vacuum leak in the EVAP system, or a malfunctioning engine control module (ECM).
4. How can I diagnose the OBDII code P146E in my Buick's EVAP system?
Diagnosis involves using an OBDII scanner to retrieve the specific code, checking the EVAP Purge System Pressure Sensor and its wiring for damage, inspecting the EVAP system for leaks, and testing the ECM for proper function.
5. Can I continue driving my Buick with the OBDII code P146E present?
It is not recommended to ignore this code, as it can lead to potential issues with the vehicle's emissions system and overall performance. It is best to address the underlying problem promptly.
6. What are some repair tips for fixing OBDII code P146E in a Buick?
Repair tips include replacing the EVAP Purge System Pressure Sensor if faulty, repairing any damaged wiring or connectors, fixing any vacuum leaks in the EVAP system, and ensuring the ECM is functioning correctly.
7. How much does it typically cost to repair OBDII code P146E in a Buick?
The cost of repair can vary depending on the specific issue causing the code. Replacing the sensor or fixing wiring may cost a few hundred dollars, while more extensive repairs could be higher.
8. Can I reset the OBDII code P146E in my Buick myself?
Yes, you can reset the code using an OBDII scanner or by disconnecting the car's battery for a few minutes. However, the code will likely return if the underlying issue is not addressed.
9. Are there any recalls or technical service bulletins related to OBDII code P146E in Buick vehicles?
It's recommended to check with Buick or visit the National Highway Traffic Safety Administration (NHTSA) website to see if there are any relevant recalls or bulletins related to this code for your specific vehicle model.
10. What should I do if I continue to experience issues after repairing OBDII code P146E in my Buick?
If problems persist after repair, it may be necessary to recheck the sensor, wiring, and other components for proper installation and functionality. Consulting a professional mechanic or dealership may also be beneficial.
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