P2147
Fuel Injector Group A Supply Voltage Circuit Low
P2147 is an OBD-II diagnostic trouble code meaning: Fuel Injector Group A Supply Voltage Circuit Low. Common causes: open or short circuit in the injector circuit, faulty injector relay. Estimated repair cost: $6–56.
Symptoms
- Unstable engine operation
- Power reduction
- Increased fuel consumption
- Engine stalls at idle
- Check Engine light comes on
Causes
- Open or short circuit in the injector circuit
- Faulty injector relay
- Poor contact in connectors
- Engine control unit (ECU) malfunction
- Damaged wiring harness
How to Fix
- Check the continuity of the injector circuit of group A
- Check relays and fuses
- Inspect connectors and contacts for corrosion or damage
- Check the operation of the engine control unit
- Replace damaged components if necessary
Related codes
Error P2147 by Vehicle Brand
FAQ
What does the P2147 code mean?
P2147 is an OBD-II diagnostic trouble code that indicates: Fuel Injector Group A Supply Voltage Circuit Low
What causes a P2147 error code?
The most common causes of P2147 include: Open or short circuit in the injector circuit; Faulty injector relay; Poor contact in connectors; Engine control unit (ECU) malfunction.
How do I fix a P2147 diagnostic trouble code?
To fix P2147: Check the continuity of the injector circuit of group A. Check relays and fuses. Inspect connectors and contacts for corrosion or damage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2147?
Limited driving only, diagnose soon
How much does it cost to fix P2147?
The estimated repair cost for P2147 is $6–56. Actual cost depends on your vehicle, location, and labor rates.
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