P21ED
Cylinder 9 Injector B Circuit High
P21ED is an OBD-II diagnostic trouble code meaning: Cylinder 9 Injector B Circuit High. Common causes: broken or damaged wires in the injector control circuit, poor contact in the injector connector. Estimated repair cost: $33–167.
Symptoms
- Unstable engine operation
- Increased fuel consumption
- Power Loss
- Misfire in cylinder 9
- Check Engine Light Is On
Causes
- Broken or damaged wires in the injector control circuit
- Poor contact in the injector connector
- Malfunction of the injector itself
- Problems with the engine control unit
- Short circuit in control circuit
How to Fix
- Check the integrity of the wires in the injector control circuit
- Inspect and clean the injector connector contacts
- Check the injector resistance with a multimeter
- If necessary, replace the injector
- Check the operation of the engine control unit
Related codes
Error P21ED by Vehicle Brand
FAQ
What does the P21ED code mean?
P21ED is an OBD-II diagnostic trouble code that indicates: Cylinder 9 Injector B Circuit High
What causes a P21ED error code?
The most common causes of P21ED include: Broken or damaged wires in the injector control circuit; Poor contact in the injector connector; Malfunction of the injector itself; Problems with the engine control unit.
How do I fix a P21ED diagnostic trouble code?
To fix P21ED: Check the integrity of the wires in the injector control circuit. Inspect and clean the injector connector contacts. Check the injector resistance with a multimeter. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P21ED?
Limited driving only, diagnose soon
How much does it cost to fix P21ED?
The estimated repair cost for P21ED is $33–167. Actual cost depends on your vehicle, location, and labor rates.
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