Engine-CodesChevrolet – P1433 Chevrolet

P1433 Chevrolet Code - Fuel Level Sensor 2 Circuit High Voltage

Quick Answer

P1433 is a diagnostic trouble code (DTC) that indicates a problem with the Fuel Level Sensor 2 Circuit in a Chevrolet vehicle. Common causes include Faulty fuel level sensor, Wiring issues in the circuit, Corroded connector. 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
P1433 Chevrolet indicates Fuel Level Sensor 2 Circuit High Voltage.
Common causes
Common causes include Faulty fuel level sensor, Wiring issues in the circuit, Corroded connector.
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 09, 2024
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Code P1433 Chevrolet Description

P1433 is a diagnostic trouble code (DTC) that indicates a problem with the Fuel Level Sensor 2 Circuit in a Chevrolet vehicle. The fuel level sensor is responsible for measuring the amount of fuel in the gas tank and sending this information to the vehicle's engine control module (ECM). In this case, the code specifically refers to a high voltage condition in the circuit, meaning that the ECM is receiving a signal indicating that the fuel level is higher than it actually is.

OBDII Code P1433 Chevrolet - Fuel Level Sensor 2 Circuit High Voltage
P1433 Chevrolet Code - Fuel Level Sensor 2 Circuit High Voltage

Common Causes of P1433 Chevrolet

  1. Faulty fuel level sensor
  2. Wiring issues in the circuit
  3. Corroded connector
  4. ECM malfunction
  5. Poor electrical connection

Symptoms of P1433 Chevrolet

  1. Inaccurate fuel gauge readings
  2. Check Engine Light illuminated
  3. Poor fuel efficiency
  4. Engine running lean or rich
  5. Vehicle stalling or hesitating

How to Fix P1433 Chevrolet

  1. Begin by conducting a visual inspection of the fuel level sensor and its wiring to check for any obvious signs of damage or corrosion.
  2. Use a multimeter to test the resistance of the fuel level sensor and compare it to the manufacturer's specifications.
  3. Inspect the wiring harness for any breaks or shorts, repairing or replacing any damaged wires as needed.
  4. Check the connector for corrosion or loose pins, cleaning or replacing it if necessary.
  5. If the issue persists, consider replacing the fuel level sensor or consulting a professional for further diagnostic assistance.

Cost to Fix P1433 Chevrolet

The typical repair costs for addressing a P1433 code in a Chevrolet vehicle can vary depending on the specific cause of the issue. In general, the cost of replacing a faulty fuel level sensor can range from $100 to $300, while diagnosing and repairing wiring or connector issues may add additional labor costs. Overall, drivers can expect to pay anywhere from $150 to $500 for resolving this problem, including parts and labor. It's important to note that actual repair costs can vary based on factors such as location, vehicle make and model, and the expertise of the auto repair shop. Drivers should consult with a qualified mechanic to obtain a more precise estimate for their specific situation.

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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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