P1928 Mercury Code - Fuel Additive Level Pump Control Circuit/Open
Quick Answer
The P1928 diagnostic trouble code (DTC) for Mercury vehicles indicates a problem with the Fuel Additive Level Pump Control Circuit being open or not functioning properly. Common causes include Faulty fuel additive pump, Wiring or connector issues in the fuel additive pump circuit, Corrosion or damage to the fuel additive pump control module. 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
- P1928 Mercury indicates Fuel Additive Level Pump Control Circuit/Open.
- Common causes
- Common causes include Faulty fuel additive pump, Wiring or connector issues in the fuel additive pump circuit, Corrosion or damage to the fuel additive pump control module.
- 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 P1928 Mercury Description
The P1928 diagnostic trouble code (DTC) for Mercury vehicles indicates a problem with the Fuel Additive Level Pump Control Circuit being open or not functioning properly. The fuel additive system in modern vehicles is designed to inject a specific amount of additive into the fuel tank to improve fuel quality, reduce emissions, and maintain engine performance. The control circuit is responsible for regulating the operation of the fuel additive pump, ensuring that the correct amount of additive is delivered to the fuel tank.
Common Causes of P1928 Mercury
- Faulty fuel additive pump
- Wiring or connector issues in the fuel additive pump circuit
- Corrosion or damage to the fuel additive pump control module
- Low fuel additive level in the tank
- Electrical issues in the fuel additive system
Symptoms of P1928 Mercury
- Rough engine idle
- Reduced engine power
- Difficulty starting the engine
- Check Engine Light illuminated
- Failed emissions test
How to Fix P1928 Mercury
- Begin by conducting a visual inspection of the fuel additive pump, wiring, and connectors to check for any visible damage or corrosion.
- Use a multimeter to test the continuity of the wiring in the fuel additive pump control circuit to identify any open circuits.
- Test the fuel additive pump itself to ensure it is functioning correctly and delivering the proper amount of additive.
- If necessary, replace the fuel additive pump, repair any damaged wiring or connectors, and reset the fault codes using a diagnostic scan tool.
- Finally, test drive the vehicle to ensure the issue has been resolved and the Check Engine Light does not reappear.
Cost to Fix P1928 Mercury
The typical repair costs for addressing a P1928 code on a Mercury vehicle can range from $200 to $500, including parts and labor. However, it is essential to note that specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Most auto repair shops charge between $80 and $150 per hour for labor, with rates potentially higher in metropolitan areas or at dealerships and lower at independent shops. It is recommended to inquire about local rates for a more accurate estimate.
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