P1243 Lincoln Code - Second Fuel Pump Faulty Or Ground Fault
Quick Answer
The P1243 diagnostic trouble code for Lincoln vehicles indicates a potential issue with the second fuel pump or a ground fault within the fuel pump system. Common causes include Malfunctioning second fuel pump, Wiring issue or ground fault in the fuel pump circuit, Faulty fuel pump relay. 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
- P1243 Lincoln indicates Second Fuel Pump Faulty Or Ground Fault.
- Common causes
- Common causes include Malfunctioning second fuel pump, Wiring issue or ground fault in the fuel pump circuit, Faulty fuel pump relay.
- 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.
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Code P1243 Lincoln Description
The P1243 diagnostic trouble code for Lincoln vehicles indicates a potential issue with the second fuel pump or a ground fault within the fuel pump system. In vehicles equipped with dual fuel pumps, the second fuel pump is typically responsible for ensuring adequate fuel supply to the engine under high-demand conditions, such as hard acceleration or high-speed driving.
Common Causes of P1243 Lincoln
- Malfunctioning second fuel pump
- Wiring issue or ground fault in the fuel pump circuit
- Faulty fuel pump relay
- Problem with the fuel pump control module
Symptoms of P1243 Lincoln
- Engine stalling or hesitation during acceleration
- Rough idling or misfiring
- Decreased fuel efficiency
- Difficulty starting the engine
- Illumination of the check engine light
How to Fix P1243 Lincoln
- Begin by conducting a thorough diagnostic scan using an OBD-II scanner to confirm the P1243 code and identify the specific issue with the second fuel pump or ground fault.
- Inspect the second fuel pump, wiring, and connections for any visible signs of damage, corrosion, or wear. Replace any damaged components as needed.
- Test the fuel pump relay and fuel pump control module to ensure they are functioning correctly. Replace any faulty components.
- Clear the diagnostic trouble codes from the vehicle's computer and perform a test drive to verify that the issue has been resolved.
Cost to Fix P1243 Lincoln
The typical repair costs for addressing a P1243 diagnostic trouble code in a Lincoln vehicle can vary depending on the specific cause of the issue and the extent of the repairs needed. On average, the cost of replacing a faulty fuel pump or related components, along with labor charges, may range from $300 to $800. It is important to note that labor rates at auto repair shops can vary, so it is advisable to check with local shops for a more accurate estimate based on your location and vehicle type.
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