P1204
Fuel System Failure Caused No. 4 Cylinder Misfire
P1204 is an OBD-II diagnostic trouble code meaning: Fuel System Failure Caused No. 4 Cylinder Misfire. Common causes: malfunction of the fuel injector 4 cylinders, dirty or clogged nozzle. Estimated repair cost: $17–89.
Symptoms
- The engine hesitates or runs unevenly
- Reduced power and deterioration in dynamics
- Increased fuel consumption
- Check Engine Light Is On
- Vibrations at idle
Causes
- Malfunction of the fuel injector 4 cylinders
- Dirty or clogged nozzle
- Problems with the fuel pump or pressure regulator
- Faulty injector wiring or connector
- Problems with the engine ECU
How to Fix
- Check the condition of the fuel injector 4 cylinders
- Clean or replace the nozzle if necessary
- Check the pressure in the fuel system
- Check the integrity of wiring and connectors
- Scan the ECU for other errors
Related codes
Error P1204 by Vehicle Brand
FAQ
What does the P1204 code mean?
P1204 is an OBD-II diagnostic trouble code that indicates: Fuel System Failure Caused No. 4 Cylinder Misfire
What causes a P1204 error code?
The most common causes of P1204 include: Malfunction of the fuel injector 4 cylinders; Dirty or clogged nozzle; Problems with the fuel pump or pressure regulator; Faulty injector wiring or connector.
How do I fix a P1204 diagnostic trouble code?
To fix P1204: Check the condition of the fuel injector 4 cylinders. Clean or replace the nozzle if necessary. Check the pressure in the fuel system. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1204?
Limited driving only, diagnose soon
How much does it cost to fix P1204?
The estimated repair cost for P1204 is $17–89. Actual cost depends on your vehicle, location, and labor rates.
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