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Engine-Codes – Mercury – P1930 Mercury

P1930 Mercury Code - Fuel Additive Level Too Low/Empty

Quick Answer

The P1930 diagnostic trouble code (DTC) indicates that the fuel additive level is too low or empty in a Mercury vehicle. Common causes include Depleted Fuel Additive: The most straightforward cause is that the fuel additive has been consumed or not replenished, Faulty Level Sensor: A malfunctioning sensor may incorrectly report the additive level, triggering the code, Leaking Additive Reservoir: Physical damage or wear may cause leaks in the reservoir, leading to low levels. 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
P1930 Mercury indicates Fuel Additive Level Too Low/Empty.
Common causes
Common causes include Depleted Fuel Additive: The most straightforward cause is that the fuel additive has been consumed or not replenished, Faulty Level Sensor: A malfunctioning sensor may incorrectly report the additive level, triggering the code, Leaking Additive Reservoir: Physical damage or wear may cause leaks in the reservoir, leading to low levels.
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.
What is this?
Table of contents Created and updated by William Orellana on Oct 21, 2024
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Code P1930 Mercury Description

The P1930 diagnostic trouble code (DTC) indicates that the fuel additive level is too low or empty in a Mercury vehicle. This code is primarily associated with vehicles equipped with a fuel system that utilizes additives, such as fuel system cleaners or lubricants, which are often necessary for optimal engine performance and longevity. These additives can help reduce engine deposits, enhance fuel combustion, and improve overall efficiency. When the system detects that the additive level is below the required threshold, it triggers the P1930 code.

OBDII Code P1930 Mercury - Fuel Additive Level Too Low/Empty
P1930 Mercury Code - Fuel Additive Level Too Low/Empty

Common Causes of P1930 Mercury

  1. Depleted Fuel Additive: The most straightforward cause is that the fuel additive has been consumed or not replenished.
  2. Faulty Level Sensor: A malfunctioning sensor may incorrectly report the additive level, triggering the code.
  3. Leaking Additive Reservoir: Physical damage or wear may cause leaks in the reservoir, leading to low levels.
  4. Electrical Issues: Wiring problems or poor connections in the additive system can prevent proper readings.
  5. Contaminated Fuel System: Contaminants in the fuel can affect the performance of additives and lead to depletion.

Symptoms of P1930 Mercury

  1. Check Engine Light: The most common symptom is the illumination of the check engine light on the dashboard.
  2. Decreased Fuel Efficiency: Drivers may notice a drop in fuel economy due to improper combustion and lubrication.
  3. Engine Performance Issues: Symptoms may include rough idling, stalling, or hesitation during acceleration.
  4. Increased Emissions: A low additive level can lead to higher emissions, potentially causing the vehicle to fail emissions tests.
  5. Unusual Engine Noises: Drivers might hear knocking or pinging sounds from the engine, indicating improper lubrication.

How to Fix P1930 Mercury

  1. Add Fuel Additive: The first step is to check the additive level and replenish it with the appropriate product as specified by the manufacturer.
  2. Inspect the Level Sensor: Test the fuel additive level sensor for proper functionality and replace it if faulty.
  3. Check for Leaks: Inspect the additive reservoir and associated hoses for any signs of leaks or damage, and repair or replace as necessary.
  4. Examine Electrical Connections: Ensure that all wiring and connectors related to the additive system are intact and functioning correctly.
  5. Clear the Code: After addressing the underlying issue, use an OBD-II scanner to clear the P1930 code and monitor for reoccurrence.

Cost to Fix P1930 Mercury

The cost to address a P1930 code can vary widely based on the specific repairs needed. For a simple additive refill, costs may be as low as $50 to $100. However, if more extensive repairs are required, such as replacing a faulty sensor or repairing leaks, costs can range from $150 to $500 or more. Labor rates typically range from $80 to $150 per hour, depending on the location and type of repair shop. Metropolitan areas and dealerships may charge higher rates, while independent shops often offer more competitive pricing. It's advisable to consult local repair shops for a precise estimate based on the specific circumstances of the vehicle.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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