AutoCodes – Volkswagen – P2146 Volkswagen

P2146 Volkswagen Code - Fuel Injector Group 'A' Supply Voltage Circuit/Open

Quick Answer

P2146 Volkswagen indicates Fuel Injector Group 'A' Supply Voltage Circuit/Open. Common causes include Faulty fuel injector, Fuel injector harness is open or shorted, Fuel injector 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
P2146 Volkswagen indicates Fuel Injector Group 'A' Supply Voltage Circuit/Open.
Common causes
Common causes include Faulty fuel injector, Fuel injector harness is open or shorted, Fuel injector 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 22,152
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 14, 2020
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Code P2146 Volkswagen Description

OBDII Code P2146 Volkswagen - Fuel Injector Group 'A' Supply Voltage Circuit/Open - AutoCodes.com
P2146 Volkswagen Code - Fuel Injector Group 'A' Supply Voltage Circuit/Open

What are the Possible Causes of the DTC P2146 Volkswagen?

  • Faulty fuel injector
  • Fuel injector harness is open or shorted
  • Fuel injector circuit poor electrical connection

How to Fix the DTC P2146 Volkswagen?

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 P2146 Volkswagen 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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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 P2146 Volkswagen Code

Q: What are some common symptoms of OBDII code P2146 in a Volkswagen related to the Fuel Injector Group 'A' Supply Voltage Circuit/Open?

A: Common symptoms include rough idle, engine misfires, decreased fuel efficiency, and potentially stalling or difficulty starting the vehicle.

Q: What are possible causes of OBDII code P2146 in a Volkswagen?

A: Possible causes include a faulty fuel injector, issues with the fuel injector wiring or connectors, a blown fuse, or a problem with the engine control module (ECM).

Q: How can I diagnose the cause of OBDII code P2146 in my Volkswagen?

A: Diagnosis typically involves checking the fuel injector for proper function, inspecting the wiring and connectors for damage or corrosion, testing the fuel injector circuit for continuity, and scanning the ECM for related error codes.

Q: Can I drive my Volkswagen with OBDII code P2146 present?

A: It is not recommended to drive your vehicle with this code present, as it can lead to engine performance issues and potential further damage if left unresolved.

Q: Is it possible to repair OBDII code P2146 in a Volkswagen at home?

A: While some DIY enthusiasts may be able to address the issue by checking and repairing the wiring or connectors, diagnosing and fixing the root cause of the code may require professional tools and expertise.

Q: How much does it typically cost to repair OBDII code P2146 in a Volkswagen?

A: The cost of repair can vary depending on the exact cause of the code, but it may range from $200 to $500 or more, including parts and labor.

Q: Can a faulty fuel injector cause OBDII code P2146 in a Volkswagen?

A: Yes, a faulty fuel injector in the Group 'A' circuit can trigger this code due to issues with supply voltage or an open circuit.

Q: Are there any preventative measures to avoid OBDII code P2146 in a Volkswagen?

A: Regular maintenance, such as checking and cleaning fuel injectors, inspecting wiring harnesses, and ensuring proper electrical connections, can help prevent issues that may lead to this code.

Q: How urgent is it to address OBDII code P2146 in a Volkswagen?

A: While the severity of the issue may vary, addressing this code promptly is recommended to prevent potential engine performance problems and further damage to the vehicle.

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