P0394

What it means

Camshaft Position Sensor B Circuit Intermittent (Bank 2): the signal is intermittent or erratic. This relates to engine timing; a fault can cause rough running, a no-start, or timing errors.

Is it safe to drive?

This code points to a problem that can cause damage or affect safety. Avoid driving and have the vehicle diagnosed promptly.

Most likely causes

• Intermittent connector

  high

  One of the most commonly reported causes for this code — check this first.

• Connector with intermittent contact under vibration

  low

  Less common, but worth ruling out after the more likely causes.

• Harness routed against vibrating component

  low

  Less common, but worth ruling out after the more likely causes.

Related help

• Full P0394 diagnosis, causes & costs
• How to read check engine light codes
• Is it safe to drive with the light on?