P02E3 2018 Chevrolet Silverado Code - Intake Air Flow Valve Control Circuit High Voltage
Quick Answer
The intake airflow valve of diesel engines reduces the intake air flow rate in part-load operation so that a higher exhaust gas recirculation rate can be achieved. 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
- P02E3 2018 Chevrolet Silverado indicates Intake Air Flow Valve Control Circuit High Voltage.
- 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.
Code P02E3 2018 Chevrolet Silverado Description
The Intake airflow valve assembly contains a contactless inductive throttle position sensing element that is managed by a customized integrated circuit. The valve position sensor is mounted within the valve body assembly and is not serviceable. The Engine Control Module (ECM) supplies the valve body 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 intake airflow valve to the ECM. The Intake Air Flow Valve cannot receive data from the ECM over the signal/serial data circuit. The valve position sensor provides a signal voltage that changes relative to the valve blade angle. The valve position sensor information is transmitted between the Intake Air Flow Valve and the ECM on the signal/serial data circuit.
The valve may also be used to shut down the engine by closing the intake airflow valve and disabling the fuel injectors if the control module detects the engine speed is beyond the desired control limits. The Diagnostic Trouble Code (DTC) will be set if the ECM detects that the intake airflow valve control circuit voltage is greater than a calibrated.
What are the Possible Causes of the DTC P02E3 2018 Chevrolet Silverado?
- 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 P02E3 2018 Chevrolet Silverado?
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 is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P02E3 2018 Chevrolet Silverado 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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Frequently Asked Questions about P02E3 2018 Chevrolet Silverado Code
1. What does the OBDII code P02E3 mean on a 2018 Chevrolet Silverado?
The code P02E3 indicates a high voltage issue in the intake air flow valve control circuit, which manages airflow into the engine.
2. What are the common symptoms of code P02E3 in a 2018 Chevrolet Silverado?
Symptoms may include reduced engine performance, poor fuel efficiency, a rough idle, or the Check Engine Light turning on.
3. What causes the P02E3 code to appear in a 2018 Silverado?
Possible causes include a faulty intake air flow valve, damaged wiring or connectors in the circuit, or a malfunctioning control module.
4. Can I drive my 2018 Chevrolet Silverado with a P02E3 code?
Driving with this code is not recommended, as it can lead to reduced performance and potential damage to engine components if left unaddressed.
5. How do I diagnose the P02E3 code on my 2018 Silverado?
Diagnosis involves checking the intake air flow valve, inspecting the wiring and connectors for damage, and testing the circuit for high voltage with a multimeter.
6. How can I fix the P02E3 code on my 2018 Chevrolet Silverado?
Repairs may include replacing the intake air flow valve, repairing damaged wiring or connectors, or reprogramming or replacing the engine control module (ECM).
7. How much does it cost to repair a P02E3 code on a 2018 Silverado?
Costs vary depending on the issue, but repairs typically range from $100 to $500, depending on whether parts like the valve or ECM need replacement.
8. Can a dirty air filter cause the P02E3 code on a 2018 Silverado?
A dirty air filter is unlikely to directly cause this code, but it can contribute to airflow issues that may affect the intake system.
9. Does the P02E3 code require a software update to fix?
In some cases, a software update or reprogramming of the ECM may be needed if the issue stems from a calibration problem.
10. How do I prevent the P02E3 code from reoccurring in my 2018 Chevrolet Silverado?
Regular maintenance, such as inspecting and cleaning the intake system and ensuring the wiring is in good condition, can help prevent this code.
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