P02A4
Cylinder 3 - Injector Restricted
P02A4 is an OBD-II diagnostic trouble code meaning: Cylinder 3 - Injector Restricted. Common causes: nozzle clogged, nozzle wear. Estimated repair cost: $56–167.
Symptoms
- Misfire in cylinder 3
- Reduced engine power
- Increased fuel consumption
- Unstable idling
- Smell of unburned fuel from the exhaust system
Causes
- Nozzle clogged
- Nozzle wear
- Power problems (open or short circuit in wiring harness)
- Malfunction of the control signal from the ECU
- Low fuel pressure
How to Fix
- Check the condition of the injector (contamination, wear)
- Test the injector electrical circuit (resistance, voltage)
- Clean or replace the injector
- Check fuel pressure
- Check wiring harness and connectors for damage
Related codes
Error P02A4 by Vehicle Brand
FAQ
What does the P02A4 code mean?
P02A4 is an OBD-II diagnostic trouble code that indicates: Cylinder 3 - Injector Restricted
What causes a P02A4 error code?
The most common causes of P02A4 include: Nozzle clogged; Nozzle wear; Power problems (open or short circuit in wiring harness); Malfunction of the control signal from the ECU.
How do I fix a P02A4 diagnostic trouble code?
To fix P02A4: Check the condition of the injector (contamination, wear). Test the injector electrical circuit (resistance, voltage). Clean or replace the injector. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P02A4?
Limited driving only, diagnose soon
How much does it cost to fix P02A4?
The estimated repair cost for P02A4 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat