P2146
Fuel Injector Group A Supply Voltage Circuit/Open
P2146 is an OBD-II diagnostic trouble code meaning: Fuel Injector Group A Supply Voltage Circuit/Open. Common causes: broken wires in the injector power supply circuit, poor contact in injector connectors. Estimated repair cost: $6–33.
Symptoms
- Unstable engine operation
- Misfires
- Reduced engine power
- Increased fuel consumption
- Check Engine light comes on
Causes
- Broken wires in the injector power supply circuit
- Poor contact in injector connectors
- Faulty relay or fuse
- Problems with the engine control unit
- Short circuit in the circuit
How to Fix
- Check the integrity of the wires in the injector power supply circuit
- Inspect and clean the contacts in the injector connectors
- Check relays and fuses associated with injectors
- Test the engine control unit
- Replace damaged wires or connectors
Related codes
Error P2146 by Vehicle Brand
FAQ
What does the P2146 code mean?
P2146 is an OBD-II diagnostic trouble code that indicates: Fuel Injector Group A Supply Voltage Circuit/Open
What causes a P2146 error code?
The most common causes of P2146 include: Broken wires in the injector power supply circuit; Poor contact in injector connectors; Faulty relay or fuse; Problems with the engine control unit.
How do I fix a P2146 diagnostic trouble code?
To fix P2146: Check the integrity of the wires in the injector power supply circuit. Inspect and clean the contacts in the injector connectors. Check relays and fuses associated with injectors. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2146?
Limited driving only, diagnose soon
How much does it cost to fix P2146?
The estimated repair cost for P2146 is $6–33. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat