P0340: Camshaft Position Sensor A Circuit (Bank 1 or Single Sensor)

What does P0340 mean?

There is a fault with the camshaft position sensor signal on bank 1.

Generic OBD-II definition: Camshaft Position Sensor A Circuit (Bank 1 or Single Sensor). Confirm applicability in your vehicle service information.

Common causes

• Failed camshaft sensor
• Wiring problem
• Timing belt/chain issue

Symptoms

• Hard starting
• Stalling
• Rough running

Can I keep driving with P0340?

Severity: Medium Drive gently and get it diagnosed soon.

If the check engine light is flashing or the car runs badly, stop driving and have it checked.

Typical fixes

• Inspect wiring
• Test sensor
• Check timing if sensor is good