The P0312 trouble code is associated with Cylinder 12 Misfire Detected, indicating that there is a misfire specifically in Cylinder 12.
Cylinder 12 Misfire Detected
Code symptoms P0312.
1. Illuminated “Check Engine” or “Service Engine Soon” light on the dashboard.
2. Rough idling in the engine.
3. Poor engine performance in Cylinder 12.
This code is common in brands such as:: Chevrolet, Renault, Ford, Toyota, Nissan, Mercedes Benz, Honda.
Causes of the code P0312.
1. Faulty spark plug in Cylinder 12.
2. Issues with the ignition coil in Cylinder 12.
3. Fuel delivery problems to Cylinder 12.
4. Problems with the Engine Control Module (ECM).
Code Solutions P0312.
1. Inspect and replace the spark plug in Cylinder 12 if it’s faulty.
2. Check and, if necessary, replace the ignition coil in Cylinder 12.
3. Ensure proper fuel delivery to Cylinder 12, including inspecting the fuel injector.
4. If ECM issues are suspected, consult a qualified technician for diagnosis and potential reprogramming or replacement.