P01FE code meaning
Turbocharger Outlet Pressure Sensor B Intermittent/Erratic
Powertrain system Generic code P01xx codes Check engine light
What P01FE means
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.
P01FE at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyMedium, DIY possible
- Typical labor0.3 to 1.5 hours
- Clears after repairAfter a drive cycle
Symptoms of P01FE
- Check engine light on (often intermittent)
- Occasional power dips
- Jerking under boost
Common causes of P01FE
- Most likelyLoose contact or corroded connector
- PossibleWire breaking from vibration or heat
- Less likelySensor erratic internally
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Turbocharger outlet pressure sensor bSensor wiringEngine control module
What each part of P01FE means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 1 | Area: fuel and air metering. |
| FE | The exact fault in that area. |
What to do next
- Note P01FE and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P01FE
What does P01FE mean?
P01FE means "Turbocharger Outlet Pressure Sensor B Intermittent/Erratic". 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 generic code, so it means the same on every make.
Is it safe to drive with P01FE?
Drive gently and only to a workshop. With P01FE the car can go into limp mode (reduced power) to protect itself.
Will P01FE fail an emissions test?
Yes, it can. P01FE is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P01FE to fix?
Difficulty: medium. A typical repair takes 0.3 to 1.5 hours of work. A careful DIY repair is possible with basic tools and a scanner.
Will P01FE clear itself after the repair?
After the repair the car has to complete a drive cycle (a mix of city and highway driving) before the test runs again. Until then the readiness monitor shows "not ready", which can fail an inspection.