P311E
Cylinder 4 High Pressure Fuel Injector Low Side/High Side Electrical
P311E is an OBD-II diagnostic trouble code meaning: Cylinder 4 High Pressure Fuel Injector Low Side/High Side Electrical. Common causes: cylinder 4 injector malfunction, open or short circuit in the injector wiring harness. Estimated repair cost: $33–111.
Symptoms
- Misfire in cylinder 4
- Unstable engine operation
- Reduced engine power
- Increased fuel consumption
- Check Engine light comes on
Causes
- Cylinder 4 injector malfunction
- Open or short circuit in the injector wiring harness
- Problems with the engine control unit (ECU)
- Poor contact in the injector connector
- Faulty injector relay or fuse
How to Fix
- Check the resistance of the injector of cylinder 4
- Inspect the wiring harness and injector connectors for damage.
- Check the voltage and continuity of the injector circuit
- If necessary, replace the injector
- Reset the error code and check if it returns
Related codes
FAQ
What does the P311E code mean?
P311E is an OBD-II diagnostic trouble code that indicates: Cylinder 4 High Pressure Fuel Injector Low Side/High Side Electrical
What causes a P311E error code?
The most common causes of P311E include: Cylinder 4 injector malfunction; Open or short circuit in the injector wiring harness; Problems with the engine control unit (ECU); Poor contact in the injector connector.
How do I fix a P311E diagnostic trouble code?
To fix P311E: Check the resistance of the injector of cylinder 4. Inspect the wiring harness and injector connectors for damage.. Check the voltage and continuity of the injector circuit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P311E?
Limited driving only, diagnose soon
How much does it cost to fix P311E?
The estimated repair cost for P311E is $33–111. Actual cost depends on your vehicle, location, and labor rates.
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