P143E Buick Code - Fuel Level Sensor 2 Reference Feedback Performance
Quick Answer
The signal circuit is connected to the Fuel Pump Driver Control Module, the control module communicates with the Engine Control Module (ECM) via serial data. Common causes include Faulty Fuel Pump Driver Control Module, Fuel Pump Driver Control Module harness is open or shorted, Fuel Pump Driver Control Module 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
- P143E Buick indicates Fuel Level Sensor 2 Reference Feedback Performance.
- Common causes
- Common causes include Faulty Fuel Pump Driver Control Module, Fuel Pump Driver Control Module harness is open or shorted, Fuel Pump Driver Control Module 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 P143E Buick Description
What are the Possible Causes of the DTC P143E Buick?
- Faulty Fuel Pump Driver Control Module
- Fuel Pump Driver Control Module harness is open or shorted
- Fuel Pump Driver Control Module circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P143E 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 P143E 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 P143E Buick Code
1. What does the OBDII code P143E mean on a Buick?
P143E refers to "Fuel Level Sensor 2 Reference Feedback Performance," indicating an issue with the fuel level sensor's feedback signal to the vehicle's control module.
2. What are the common symptoms of code P143E?
Symptoms may include incorrect fuel level readings on the gauge, erratic fuel gauge behavior, illumination of the check engine light, and potential drivability issues due to inaccurate fuel monitoring.
3. What causes the P143E code to appear on a Buick?
The code can be triggered by a faulty fuel level sensor, damaged wiring or connectors, corrosion in the fuel tank module, or issues with the vehicle's control module.
4. Can a loose fuel cap cause code P143E on a Buick?
No, a loose fuel cap is not related to this code. P143E specifically pertains to the fuel level sensor and its feedback performance.
5. How is the P143E code diagnosed on a Buick?
A technician will typically inspect the fuel level sensor, check the wiring and connectors for damage or corrosion, and use a scan tool to monitor the sensor's feedback signal to confirm the issue.
6. Can I still drive my Buick with a P143E code?
While the vehicle may still be drivable, it’s not recommended to ignore the code as it can lead to inaccurate fuel monitoring and potentially leave you stranded if the fuel level is miscalculated.
7. What repairs can fix the P143E code on a Buick?
Common fixes include replacing the faulty fuel level sensor, repairing or replacing damaged wiring or connectors, and cleaning corrosion from the fuel tank module.
8. How much does it cost to repair a P143E code on a Buick?
Repair costs can vary but typically range from $200 to $600, depending on whether the fuel level sensor needs replacement or if additional wiring repairs are required.
9. Can a P143E code cause additional damage to my Buick?
While not directly damaging, ignoring the issue can lead to running out of fuel unexpectedly, which may cause the fuel pump to overheat or fail.
10. How can I prevent the P143E code from recurring on my Buick?
Regular maintenance, keeping the fuel tank clean, and inspecting wiring and connectors for damage or corrosion can help prevent this code from recurring.
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