AutoCodesChevrolet – P0458 2016 Chevrolet Silverado

P0458 2016 Chevrolet Silverado Code - Evaporative Emission Purge Solenoid Valve Control Circuit Low Voltage

Quick Answer

The Evaporative Emission (EVAP) Purge Solenoid Valve is used to purge fuel vapor from the EVAP canister to the intake manifold. Common causes include Faulty Evaporative Emission (EVAP) Purge Solenoid Valve, Evaporative Emission Purge Solenoid Valve harness is open or shorted, Evaporative Emission Purge Solenoid Valve circuit poor electrical connection. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means
P0458 2016 Chevrolet Silverado indicates Evaporative Emission Purge Solenoid Valve Control Circuit Low Voltage.
Common causes
Common causes include Faulty Evaporative Emission (EVAP) Purge Solenoid Valve, Evaporative Emission Purge Solenoid Valve harness is open or shorted, Evaporative Emission Purge Solenoid Valve circuit poor electrical connection.
Severity
Low - monitor the vehicle and repair when practical.
Can I drive?
The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 805
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 27, 2022
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Code P0458 2016 Chevrolet Silverado Description

The Evaporative Emission (EVAP) Purge Solenoid Valve is used to purge fuel vapor from the EVAP canister to the intake manifold. The EVAP purge solenoid valve is Pulse Width Modulated (PWM). Ignition voltage is supplied directly to the EVAP purge solenoid valve. The Engine Control Module (ECM) controls the solenoid valve by grounding the control circuit with a solid-state device called a driver. The driver is equipped with a feedback circuit that is pulled up to a voltage. The ECM can determine if the control circuit is open, shorted to the ground, or shorted to a voltage by monitoring the feedback voltage. The Diagnostic Trouble Code (DTC) will be set when the ECM detects the EVAP purge solenoid valve control circuit is shorted to the ground within 0.25 s.
OBDII Code P0458 2016 Chevrolet Silverado - Evaporative Emission Purge Solenoid Valve Control Circuit Low Voltage - AutoCodes.com
P0458 2016 Chevrolet Silverado Code - Evaporative Emission Purge Solenoid Valve Control Circuit Low Voltage

What are the Possible Causes of the DTC P0458 2016 Chevrolet Silverado?

  • Faulty Evaporative Emission (EVAP) Purge Solenoid Valve
  • Evaporative Emission Purge Solenoid Valve harness is open or shorted
  • Evaporative Emission Purge Solenoid Valve circuit poor electrical connection
  • Faulty Engine Control Module (ECM)

How to Fix the DTC P0458 2016 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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0458 2016 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.

Need more information about the P0458 2016 Chevrolet Silverado code?

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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.

Frequently Asked Questions about P0458 2016 Chevrolet Silverado Code

1. What does the OBDII code P0458 mean on a 2016 Chevrolet Silverado?

P0458 indicates that the Engine Control Module (ECM) has detected a low voltage issue in the evaporative emission purge solenoid valve control circuit.

2. What are the common symptoms of code P0458 in a 2016 Chevrolet Silverado?

Symptoms may include an illuminated check engine light, reduced fuel efficiency, difficulty starting, or a noticeable fuel odor.

3. What causes the P0458 code in a 2016 Chevrolet Silverado?

Common causes include a faulty purge solenoid valve, damaged wiring or connectors in the circuit, a blown fuse, or a malfunctioning ECM.

4. Can I drive my 2016 Chevrolet Silverado with a P0458 code?

While the vehicle may still be drivable, it's not recommended to ignore this code as it could lead to increased emissions and potential damage to the EVAP system.

5. How do I diagnose the P0458 code on my 2016 Chevrolet Silverado?

Diagnosis involves inspecting the purge solenoid valve, checking for damaged wiring or loose connections, testing the circuit voltage, and verifying fuse integrity.

6. How do I fix the P0458 code on a 2016 Chevrolet Silverado?

Repairs may include replacing the purge solenoid valve, repairing or replacing damaged wiring, securing loose connectors, or replacing a blown fuse.

7. How much does it cost to repair the P0458 code on a 2016 Chevrolet Silverado?

Repair costs vary but typically range from $150 to $300, depending on the part and labor rates in your area.

8. Can a bad purge solenoid valve cause the P0458 code?

Yes, a malfunctioning purge solenoid valve is a common cause of the P0458 code as it can disrupt the circuit's voltage.

9. Does the P0458 code affect emissions testing on my 2016 Chevrolet Silverado?

Yes, the P0458 code can cause your vehicle to fail emissions testing due to a malfunction in the EVAP system.

10. Can a weak battery trigger the P0458 code on a 2016 Chevrolet Silverado?

A weak battery is unlikely to cause this code, but low voltage in the circuit due to wiring issues or a faulty component could trigger it.

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