Powertrain, generic · Ignition system or misfire

P0349 Camshaft Position Sensor A Circuit Intermittent Bank 2

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

P0349 is the bank 2 counterpart of P0344: the signal of the intake camshaft sensor on the side without cylinder 1 is disturbed for moments – edges are missing or appear at an unexpected angle. Ford checks this on the five-tooth wheel used with variable cam timing; if edges appear where none are expected, Ford sets P0349 and switches cam timing on bank 2 off, from 200 rpm, detected within 5 s. FCA also uses the code and asks for the cam/crank synchronisation event data to be saved before the sensor is replaced, because a disturbed crank reference can look like a cam fault. GM does not use P0349. Typical causes are a loose contact at the bank 2 connector, a sensor dropping out when hot or soaked with oil moisture, and a damaged tone wheel.

Likely causes

Loose contact or corrosion at the bank 2 connector
Sensor dropping out when hot or due to oil moisture
Tone wheel of bank 2 damaged
Interference or chafed wiring

Symptoms

  • Check engine light on
  • Sporadic loss of power (cam timing off)
  • Rough running
  • Occasionally longer cranking

Repair estimate

DifficultyMediumDIY possible
Parts and labour€30–350
Time0.5–2.5 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

camshaft position sensorcamshaft tone wheelsensor wiringengine control modulecam phaser intake bank2

Related codes

P0344P0345P0346P0394P0018

References: newtonnet.co.uk, fordservicecontent.com, static.nhtsa.gov, law.cornell.edu.