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Engine-Codes – Generic – P02E3

P02E3 Code - Intake Air Flow Valve Control Circuit High Voltage

Quick Answer

The diagnostic trouble code P02E3 indicates a problem with the intake air flow valve control circuit in the vehicle. Common causes include Faulty intake air flow valve, Wiring harness issues, Loose or corroded connectors. 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
P02E3 indicates Intake Air Flow Valve Control Circuit High Voltage.
Common causes
Common causes include Faulty intake air flow valve, Wiring harness issues, Loose or corroded connectors.
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 Sep 07, 2024
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Code P02E3 Description

The diagnostic trouble code P02E3 indicates a problem with the intake air flow valve control circuit in the vehicle. This code specifically points to high voltage being detected in the intake air flow valve control circuit. The intake air flow valve is responsible for controlling the amount of air entering the engine, which is crucial for the combustion process. When the control circuit detects high voltage, it means that there is an issue with the electrical signals being sent to the intake air flow valve, leading to potential performance issues.

OBDII Code P02E3 - Intake Air Flow Valve Control Circuit High Voltage
P02E3 Code - Intake Air Flow Valve Control Circuit High Voltage

Common Causes of P02E3

  1. Faulty intake air flow valve
  2. Wiring harness issues
  3. Loose or corroded connectors
  4. ECM malfunction
  5. Electrical short circuit

Symptoms of P02E3

  1. Decreased engine performance
  2. Reduced fuel efficiency
  3. Rough idling or stalling
  4. Check Engine Light illuminated
  5. Lack of power during acceleration

How to Fix P02E3

  1. Begin by conducting a thorough inspection of the intake air flow valve control circuit to identify any visible damage or loose connections.
  2. Use a multimeter to test the voltage in the circuit and compare it to the manufacturer's specifications to determine if the voltage is indeed high.
  3. If the voltage is high, check the wiring harness for any signs of damage or corrosion. Repair or replace any damaged wiring.
  4. Inspect the connectors for the intake air flow valve and ECM to ensure they are securely connected and free of corrosion. Clean or replace any faulty connectors.
  5. If the issue persists, consider replacing the intake air flow valve or the ECM, depending on which component is determined to be faulty.

Cost to Fix P02E3

The typical repair costs for addressing a P02E3 code related to the intake air flow valve control circuit high voltage can vary depending on the specific cause of the issue. The cost of parts, such as a new intake air flow valve or ECM, can range from $100 to $500 or more. Labor costs at auto repair shops can range from $80 to $150 per hour, with the total repair bill potentially amounting to a few hundred dollars to over a thousand dollars. It is recommended to obtain quotes from local auto repair shops to get a more accurate estimate based on your vehicle make and model.

What does this mean?

Tech Notes for P02E3





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Code P02E3 Information for Specific Makes

  • P02E3 Buick — Intake Air Flow Valve Control Circuit High Voltage
  • P02E3 Cadillac — Intake Air Flow Valve Control Circuit High Voltage
  • P02E3 Chevrolet — Intake Air Flow Valve Control Circuit High Voltage
  • P02E3 Ford — Diesel Intake Air Flow Control Circuit High
  • P02E3 GMC — Intake Air Flow Valve Control Circuit High Voltage
  • P02E3 Isuzu — Electronic Control Throttle DC Motor +B/GND Short Malfunction
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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