P2146 Fault Code

Fuel Injector Group A Supply Voltage Circuit/Open

• What does that mean?
• Symptoms
• Causes
• Solutions

The P2146 fault code indicates an issue with the fuel injector group A supply voltage circuit. This may occur when there is an open circuit or a malfunction in the wiring or connectors affecting the fuel injectors of group A. It is essential for the engine control unit (ECU) to receive the appropriate voltage to ensure the proper operation of the fuel injectors.

What are the symptoms of the P2146 code?

Symptoms associated with the P2146 fault code may consist of:

• Engine misfires or poor engine performance
• Rough idle or stalling
• Increased fuel consumption
• Check Engine Light (CEL) illuminated on the dashboard
• Difficulty starting the vehicle in some cases.

What causes the P2146 code?

Common causes of the P2146 fault code include:

• Damaged wiring or connectors in the fuel injector circuit
• Faulty fuel injector(s) themselves
• Issues with the engine control unit (ECU)
• Poor ground connections that affect the supply voltage
• Blown fuses or open circuits in the electrical system.

How to fix P2146?

To resolve the P2146 fault code, follow these steps:

1. Inspect the fuel injector wiring and connectors for any signs of damage or corrosion.
2. Use a multimeter to check for proper voltage at the fuel injector terminals.
3. Examine the ECU for any faults or issues that may affect the injector circuit.
4. Replace or repair any damaged parts as needed, including wiring, connectors, and injectors.
5. Clear the fault codes and perform a test drive to ensure the issue is resolved.