AutoCodes – Chevrolet – P148F Chevrolet

P148F Chevrolet Code - EVAP Purge Pump Voltage Sensor High Voltage

Quick Answer

Purge capacity is being reduced by technologies that improve fuel economy. Common causes include Faulty Evaporative Emission Purge Pump, Evaporative Emission Purge Pump harness is open or shorted, Evaporative Emission Purge Pump 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: P148F Chevrolet indicates EVAP Purge Pump Voltage Sensor High Voltage.
Common causes: Common causes include Faulty Evaporative Emission Purge Pump, Evaporative Emission Purge Pump harness is open or shorted, Evaporative Emission Purge Pump 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 311

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Apr 18, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P148F Chevrolet Description

Purge capacity is being reduced by technologies that improve fuel economy. The Evaporative Emission Purge Pump is used to purge stored vapors from the Evaporative Emission Canister and is required to increase the purge volumes to meet LEV 3 Evaporative Emission requirements. The Evaporative Emission Purge Pump has an integral pressure sensor for controlling purge vapors from the canister. The Engine Control Module (ECM) monitors the Evaporative Emission Purge Pump, and the Diagnostic Trouble Code (DTC) will be set when the EVAP Purge Pump Voltage is greater than 28.0 V for greater than 1 s.

OBDII Code P148F Chevrolet - EVAP Purge Pump Voltage Sensor High Voltage - AutoCodes.com — P148F Chevrolet Code - EVAP Purge Pump Voltage Sensor High Voltage

What does this mean?

What are the Possible Causes of the DTC P148F Chevrolet?

Faulty Evaporative Emission Purge Pump
Evaporative Emission Purge Pump harness is open or shorted
Evaporative Emission Purge Pump circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P148F 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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P148F 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.

Need more information about the P148F Chevrolet code?

Need more information on how to fix the P148F Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P148F Chevrolet code diagnosed by a professional: Find a repair shop in your area

Information for Specific Chevrolet Models

P148F 2019 Chevrolet Silverado — EVAP Purge Pump Voltage Sensor High Voltage
P148F 2020 Chevrolet Silverado — EVAP Purge Pump Voltage Sensor High Voltage
P148F 2021 Chevrolet Silverado — EVAP Purge Pump Voltage Sensor High Voltage
P148F 2022 Chevrolet Silverado — EVAP Purge Pump Voltage Sensor High Voltage

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 P148F Chevrolet Code

1. What are the common symptoms of OBDII code P148F in a Chevrolet vehicle?

The common symptoms of OBDII code P148F in a Chevrolet vehicle include a check engine light illuminated on the dashboard, decreased fuel efficiency, and potential issues with the vehicle's emissions system.

2. What does the OBDII code P148F Chevrolet EVAP Purge Pump Voltage Sensor High Voltage indicate?

The OBDII code P148F indicates that there is a high voltage detected in the EVAP purge pump voltage sensor circuit in a Chevrolet vehicle. This typically points to a malfunction in the EVAP system.

3. What are the possible causes of OBDII code P148F in a Chevrolet vehicle?

Possible causes of OBDII code P148F in a Chevrolet vehicle include a faulty EVAP purge pump, damaged wiring or connectors in the EVAP system, a defective purge pump voltage sensor, or a malfunctioning powertrain control module (PCM).

4. How can I diagnose OBDII code P148F in my Chevrolet vehicle?

Diagnosing OBDII code P148F in a Chevrolet vehicle involves using an OBDII scanner to retrieve the code, checking the EVAP system components for any visible damage or leaks, testing the purge pump voltage sensor, and inspecting the wiring and connectors for any issues.

5. What are the repair options for OBDII code P148F in a Chevrolet vehicle?

Repair options for OBDII code P148F in a Chevrolet vehicle may include replacing the EVAP purge pump, repairing or replacing damaged wiring or connectors, replacing the purge pump voltage sensor, or reprogramming the PCM if necessary.

6. Can I continue driving my Chevrolet vehicle with OBDII code P148F?

It is not recommended to continue driving your Chevrolet vehicle with OBDII code P148F, as it can lead to further damage to the emissions system and potentially affect the vehicle's performance. It is best to address the issue promptly.

7. How much does it typically cost to repair OBDII code P148F in a Chevrolet vehicle?

The cost of repairing OBDII code P148F in a Chevrolet vehicle can vary depending on the specific cause of the issue, the labor rates in your area, and whether you choose to repair the vehicle yourself or take it to a professional mechanic. Costs may range from a few hundred to a few thousand dollars.

8. Are there any preventive maintenance tips to avoid OBDII code P148F in a Chevrolet vehicle?

To help prevent OBDII code P148F in a Chevrolet vehicle, it is recommended to regularly inspect and maintain the EVAP system components, such as the purge pump and related sensors, and address any issues promptly. Additionally, following the manufacturer's recommended maintenance schedule can help prevent such issues.

9. Can a DIY enthusiast repair OBDII code P148F in a Chevrolet vehicle?

Some DIY enthusiasts with experience in automotive repair may be able to diagnose and repair OBDII code P148F in a Chevrolet vehicle, especially if they have access to the necessary tools and resources. However, it is important to have a good understanding of the EVAP system and related components before attempting any repairs.

10. How long does it typically take to repair OBDII code P148F in a Chevrolet vehicle?

The time it takes to repair OBDII code P148F in a Chevrolet vehicle can vary depending on the specific cause of the issue, the availability of parts, and the experience of the mechanic. In some cases, the repair can be completed in a few hours, while more complex issues may take longer to diagnose and fix.