P21EB
Cylinder 8 Injector B Circuit High
P21EB is an OBD-II diagnostic trouble code meaning: Cylinder 8 Injector B Circuit High. Common causes: cylinder 8 injector malfunction, short circuit in injector control circuit. Estimated repair cost: $28–89.
Symptoms
- Misfire in cylinder 8
- Increased fuel consumption
- Rough idling
- Check Engine Light Illuminates
- Reduced engine power
Causes
- Cylinder 8 injector malfunction
- Short circuit in injector control circuit
- Wiring harness damage
- Problems with the engine control unit (ECU)
- Corroded contacts or poor connection
How to Fix
- Check the resistance of the injector of cylinder 8
- Inspect the wiring harness for damage
- Check the voltage in the injector control circuit
- Clean contacts and check connections
- If necessary, replace the nozzle or repair the wiring
Related codes
Error P21EB by Vehicle Brand
FAQ
What does the P21EB code mean?
P21EB is an OBD-II diagnostic trouble code that indicates: Cylinder 8 Injector B Circuit High
What causes a P21EB error code?
The most common causes of P21EB include: Cylinder 8 injector malfunction; Short circuit in injector control circuit; Wiring harness damage; Problems with the engine control unit (ECU).
How do I fix a P21EB diagnostic trouble code?
To fix P21EB: Check the resistance of the injector of cylinder 8. Inspect the wiring harness for damage. Check the voltage in the injector control circuit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P21EB?
Limited driving only, diagnose soon
How much does it cost to fix P21EB?
The estimated repair cost for P21EB is $28–89. Actual cost depends on your vehicle, location, and labor rates.
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