Powertrain, generic · Fuel and air metering

P01FE Turbocharger Outlet Pressure Sensor B Intermittent/Erratic

Check engine lightOn
EmissionsRelevant
Drive cycleRequired
Limp modePossible

Turbocharger outlet pressure sensor B is a second pressure sensor at a compressor outlet – for example one per turbo on twin-turbo engines or a second measuring point; sensor A has the codes P00F8–P00FC. It is a separate family from the boost pressure sensor: GM and Ford report the pressure ahead of the throttle under the boost sensor codes P0236–P0238. No manufacturer using the sensor B codes was found; FCA documents sensor A and a second outlet sensor. P01FE counts brief spikes or dropouts that are too short for the low or high code. Ford's equivalent boost sensor check sets after 10 such events in one drive cycle. The usual cause is a loose or corroded contact or a wire broken by vibration and heat.

Likely causes

Loose contact or corroded connector
Wire breaking from vibration or heat
Sensor erratic internally

Symptoms

  • Check engine light on (often intermittent)
  • Occasional power dips
  • Jerking under boost

Repair estimate

DifficultyMediumDIY possible
Parts and labour€30–250
Time0.3–1.5 h

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

Parts involved

turbocharger outlet pressure sensor bsensor wiringengine control module

Related codes

P00FCP01FAP01FCP01FDP025E

References: law.cornell.edu, fordservicecontent.com, gsi.ext.gm.com.