P21E6
Cylinder 6 Injector B Circuit Low
P21E6 is an OBD-II diagnostic trouble code meaning: Cylinder 6 Injector B Circuit Low. Common causes: cylinder 6 injector malfunction, open or short circuit in wiring harness. Estimated repair cost: $17–89.
Symptoms
- Uneven engine operation
- Increased fuel consumption
- Misfire in cylinder 6
- Check Engine light comes on
- Reduced engine power
Causes
- Cylinder 6 injector malfunction
- Open or short circuit in wiring harness
- Poor contact in the injector connectors
- Engine control unit (ECU) malfunction
- Problems with the injector relay or fuse
How to Fix
- Check the resistance of the injector of cylinder 6
- Inspect the wiring harness and connectors for damage.
- Check the voltage in the injector circuit
- Replace the faulty injector if necessary
- Test the operation of the engine control unit
Related codes
Error P21E6 by Vehicle Brand
FAQ
What does the P21E6 code mean?
P21E6 is an OBD-II diagnostic trouble code that indicates: Cylinder 6 Injector B Circuit Low
What causes a P21E6 error code?
The most common causes of P21E6 include: Cylinder 6 injector malfunction; Open or short circuit in wiring harness; Poor contact in the injector connectors; Engine control unit (ECU) malfunction.
How do I fix a P21E6 diagnostic trouble code?
To fix P21E6: Check the resistance of the injector of cylinder 6. Inspect the wiring harness and connectors for damage.. Check the voltage in the injector circuit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P21E6?
Limited driving only, diagnose soon
How much does it cost to fix P21E6?
The estimated repair cost for P21E6 is $17–89. Actual cost depends on your vehicle, location, and labor rates.
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