P21DE
Cylinder 2 Injector B Circuit Low
P21DE is an OBD-II diagnostic trouble code meaning: Cylinder 2 Injector B Circuit Low. Common causes: short circuit in the injector circuit, wiring harness damage. Estimated repair cost: $17–89.
Symptoms
- Rough engine operation
- Misfire in cylinder 2
- Increased fuel consumption
- Loss of engine power
- Check Engine Light Is On
Causes
- Short circuit in the injector circuit
- Wiring harness damage
- Cylinder 2 injector malfunction
- Problems with the engine control unit
- Corrosion or poor contact in connectors
How to Fix
- Check the resistance of the injector of cylinder 2
- Inspect the wiring harness and connectors for damage.
- Check the integrity of the injector control circuit
- If necessary, replace the injector of cylinder 2
- Check and, if necessary, replace the engine control unit
Related codes
Error P21DE by Vehicle Brand
FAQ
What does the P21DE code mean?
P21DE is an OBD-II diagnostic trouble code that indicates: Cylinder 2 Injector B Circuit Low
What causes a P21DE error code?
The most common causes of P21DE include: Short circuit in the injector circuit; Wiring harness damage; Cylinder 2 injector malfunction; Problems with the engine control unit.
How do I fix a P21DE diagnostic trouble code?
To fix P21DE: Check the resistance of the injector of cylinder 2. Inspect the wiring harness and connectors for damage.. Check the integrity of the injector control circuit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P21DE?
Limited driving only, diagnose soon
How much does it cost to fix P21DE?
The estimated repair cost for P21DE is $17–89. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat