Engine-CodesDodge – P0090 Dodge

P0090 Dodge Code - Fuel Quantity Solenoid Open Circuit

Quick Answer

The P0090 diagnostic trouble code (DTC) for Dodge vehicles indicates a Fuel Quantity Solenoid Open Circuit. Common causes include Faulty fuel quantity solenoid, Damaged wiring or connectors in the solenoid circuit, Malfunctioning ECM. 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
P0090 Dodge indicates Fuel Quantity Solenoid Open Circuit.
Common causes
Common causes include Faulty fuel quantity solenoid, Damaged wiring or connectors in the solenoid circuit, Malfunctioning ECM.
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.
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code P0090 Dodge Description

The P0090 diagnostic trouble code (DTC) for Dodge vehicles indicates a Fuel Quantity Solenoid Open Circuit. This code is typically triggered when the Engine Control Module (ECM) detects an open circuit in the fuel quantity solenoid circuit. The fuel quantity solenoid is responsible for controlling the amount of fuel that is injected into the engine cylinders, based on input from the ECM. When the circuit is open, the solenoid is unable to function properly, leading to potential issues with fuel delivery and combustion.

OBDII Code P0090 Dodge - Fuel Quantity Solenoid Open Circuit
P0090 Dodge Code - Fuel Quantity Solenoid Open Circuit

Common Causes of P0090 Dodge

  1. Faulty fuel quantity solenoid
  2. Damaged wiring or connectors in the solenoid circuit
  3. Malfunctioning ECM
  4. Corrosion or debris in the solenoid circuit
  5. Electrical issues such as a blown fuse

Symptoms of P0090 Dodge

  1. Decreased fuel efficiency
  2. Rough idling or engine hesitation
  3. Stalling during acceleration
  4. Engine misfires
  5. Check Engine Light illuminated

How to Fix P0090 Dodge

  1. Begin by conducting a visual inspection of the fuel quantity solenoid circuit, checking for any obvious signs of damage or corrosion.
  2. Use a multimeter to test the continuity of the wiring and connectors in the solenoid circuit to identify any open circuits.
  3. Inspect the fuel quantity solenoid for proper operation and replace it if necessary.
  4. Clear the DTC with a scan tool and test drive the vehicle to ensure the issue has been resolved.
  5. If the problem persists, further diagnostic testing may be required to identify any underlying issues with the ECM or other components.

Cost to Fix P0090 Dodge

The typical repair costs for addressing a P0090 code can vary depending on the specific cause of the issue. In general, replacing a faulty fuel quantity solenoid can cost between $150 and $300, including parts and labor. Additional costs may be incurred if wiring or connectors need to be replaced or if further diagnostic testing is required. It is advisable to consult with a qualified mechanic or auto repair shop to obtain a more accurate estimate based on the specific circumstances of your vehicle. Keep in mind that labor rates can vary between different locations and types of repair facilities.

When is the Code Detected?

The Engine Control Module (ECM) has detected an open in the Fuel Quantity Solenoid Circuit

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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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