P02B4
Cylinder 7 - Injector Restricted
P02B4 is an OBD-II diagnostic trouble code meaning: Cylinder 7 - Injector Restricted. Common causes: dirty or clogged nozzle, injector electrical circuit malfunction. Estimated repair cost: $56–167.
Symptoms
- Uneven engine operation
- Misfire in cylinder 7
- Power reduction
- Increased fuel consumption
- Jerking during acceleration
Causes
- Dirty or clogged nozzle
- Injector electrical circuit malfunction
- Problems with the fuel pump
- Low fuel pressure
- ECU malfunction
How to Fix
- Check the condition of the injector of the 7th cylinder
- Clean or replace the nozzle if necessary
- Check the injector electrical circuit
- Check fuel pressure
- Scan the ECU for other errors
Related codes
Error P02B4 by Vehicle Brand
FAQ
What does the P02B4 code mean?
P02B4 is an OBD-II diagnostic trouble code that indicates: Cylinder 7 - Injector Restricted
What causes a P02B4 error code?
The most common causes of P02B4 include: Dirty or clogged nozzle; Injector electrical circuit malfunction; Problems with the fuel pump; Low fuel pressure.
How do I fix a P02B4 diagnostic trouble code?
To fix P02B4: Check the condition of the injector of the 7th cylinder. Clean or replace the nozzle if necessary. Check the injector electrical circuit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P02B4?
Limited driving only, diagnose soon
How much does it cost to fix P02B4?
The estimated repair cost for P02B4 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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