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P02E1 Chevrolet Code - Intake Air Flow Valve Control Performance

Quick Answer

The intake airflow valve is a throttle plate actuator and is used to achieve high exhaust gas recirculation rates. Common causes include Faulty Throttle Body Assembly, Throttle Body Assembly harness is open or shorted, Throttle Body Assembly circuit poor electrical connection. 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
P02E1 Chevrolet indicates Intake Air Flow Valve Control Performance.
Common causes
Common causes include Faulty Throttle Body Assembly, Throttle Body Assembly harness is open or shorted, Throttle Body Assembly circuit poor electrical connection.
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 Popularity 2,785
How popular is this code, among other codes? Low
What is this?
Table of contents Created and updated by William Orellana on Jun 09, 2022
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Code P02E1 Chevrolet Description

The intake airflow valve is a throttle plate actuator and is used to achieve high exhaust gas recirculation rates. It increases the pressure difference between exhaust and intake so that the appropriate exhaust quantity can be mixed with the intake air. The intake airflow valve contains a contactless inductive throttle position sensing element that is managed by a customized integrated circuit. The throttle position sensor is mounted within the valve assembly and is not serviceable. The Engine Control Module (ECM) supplies the valve assembly with a 5 V reference circuit, a low reference circuit, an H-bridge motor directional control circuit, and an asynchronous signal/serial data circuit. The asynchronous signal means communication is only going from the valve assembly to the ECM. The valve assembly cannot receive data from the ECM over the signal/serial data circuit. The throttle position sensor provides a signal that changes relative to the throttle blade angle. The throttle position sensor information is transmitted between the valve assembly and the ECM on the signal/serial data circuit. The ECM decodes the serial data signal into separate voltages which are displayed on a scan tool as the voltage inputs from TP sensors 1 and 2. The Diagnostic Trouble Code (DTC) will be set when the desired Throttle Position and the actual Throttle Position is greater than 10%.
OBDII Code P02E1 Chevrolet - Intake Air Flow Valve Control Performance - AutoCodes.com
P02E1 Chevrolet Code - Intake Air Flow Valve Control Performance
What does this mean?

What are the Possible Causes of the DTC P02E1 Chevrolet?

  • Faulty Throttle Body Assembly
  • Throttle Body Assembly harness is open or shorted
  • Throttle Body Assembly circuit poor electrical connection
  • Faulty Engine Control Module (ECM)

How to Fix the DTC P02E1 Chevrolet?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What does this mean?

Code Tech Notes





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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P02E1 Chevrolet code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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Information for Specific Chevrolet Models

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.

Frequently Asked Questions about P02E1 Chevrolet Code

1. What does the OBDII code P02E1 mean on a Chevrolet?

P02E1 indicates an issue with the intake air flow valve control performance, meaning the valve is not operating as expected to regulate airflow into the engine.

2. What are common symptoms of the P02E1 code on a Chevrolet?

Symptoms may include reduced engine performance, rough idling, hesitant acceleration, increased fuel consumption, or the Check Engine Light being illuminated.

3. What causes the P02E1 code to appear on a Chevrolet?

Common causes include a malfunctioning intake air flow valve, wiring issues, a faulty actuator, carbon buildup in the valve, or a problem with the engine control module (ECM).

4. Can I drive my Chevrolet with a P02E1 code?

Driving with a P02E1 code is not recommended as it can lead to reduced engine performance, potential damage to other components, and increased emissions.

5. How can I fix the P02E1 code on my Chevrolet?

Repairs may involve cleaning or replacing the intake air flow valve, checking and repairing any damaged wiring, or replacing the actuator if it's faulty.

6. How do I diagnose the P02E1 code on a Chevrolet?

Diagnosing involves using an OBDII scanner to confirm the code, visually inspecting the intake air flow valve and wiring, and performing tests on the actuator and related components.

7. Can a dirty air filter cause the P02E1 code on a Chevrolet?

While a dirty air filter can restrict airflow, it is not a direct cause of the P02E1 code, which specifically relates to the intake air flow valve control system.

8. Is the P02E1 code serious on a Chevrolet?

Yes, it can be serious as it affects engine performance and emissions. Prompt diagnosis and repair are recommended to prevent further issues.

9. How much does it cost to repair the P02E1 code on a Chevrolet?

Repair costs can vary widely, depending on whether the valve needs cleaning or replacement, with repairs typically ranging from $100 to $500.

10. Can a software update fix the P02E1 code on a Chevrolet?

In some cases, a software update to the engine control module (ECM) may resolve the issue if the problem is related to incorrect programming.

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