Fault codes › P0271
P0271
Cylinder 4 Injector Circuit High
Generic code
Injector Circuit
High severity
Hard repair
Free on OBD DashX
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iWhat P0271 means
- The fault code P0271 indicates that there is a high voltage in the circuit controlling the fuel injector for cylinder 4. This can cause issues with the fuel mixture and may impact the engine's performance.
!Possible symptoms
- Engine misfires
- Illuminated check engine light
- Decreased fuel efficiency
- Engine runs rough or stalls
- Reduced engine power or acceleration
?Possible causes
- Failed fuel injector for cylinder 4
- Wiring or connection issues in the fuel injector circuit
- Loose or corroded electrical connections
- Failed powertrain control module (PCM)
✓Possible solutions
- Replace the fuel injector for cylinder 4
- Check and repair any damaged wiring or connections in the fuel injector circuit
- Tighten or clean any loose or corroded electrical connections
- Replace the powertrain control module (PCM) if necessary