P0340Camshaft Position (CMP) Sensor Circuit Malfunction (Bank 1)
The CMP sensor is not sending a correct signal, affecting engine timing.
Can I keep driving? NO
STOP the vehicle in a safe place. Continuing to drive may cause serious engine damage or put your safety at risk.
Sistema Afectado
Sistema de Encendido · Bujías, bobinas y cilindros
El problema afecta la combustión en uno o más cilindros: bujías, bobinas o inyectores.
Espacio para vendedores de repuestos
Aún no hay un anunciante en este espacio.
Symptoms You Will Notice
What you may observe when this code appears
- No start or hard start
- Engine stalls while driving
Possible Causes
The components or conditions that trigger this code
- 1Faulty CMP sensor
- 2Damaged wiring
- 3Dirty reluctor (tone) wheel
How to Fix It — Step by Step
Recommended diagnostic and repair procedure
- 1Clean the CMP sensor
- 2Check the wiring
- 3Replace the sensor
Note: This information is for general reference. For precise diagnostics and safety repairs, always consult a certified mechanic.
Estimated Cost
Approximate range in USD (varies by region and shop)
Spark plugs + coils
* Diagnosis only: $50–$150
Quick Info
Dig Deeper
Videos, images and service manuals
Have Another Code?
Look it up directly: