The turbocharger outlet pressure sensor A measures the pressure directly at the compressor outlet. It is a separate code family from the boost pressure sensor, which usually measures the pressure just ahead of the throttle; engines use it where the pressure behind the compressor is needed in addition, for example to judge the pressure loss across the charge air cooler or to protect against compressor surge. One manufacturer documents it as a combined temperature and pressure sensor. P00F8 is the general circuit fault of this sensor. None of the published manufacturer documents searched uses this code; the explanation follows regulations and comparable manufacturer monitors.
Medium severity. Can I keep driving?Drive without demanding power and go to a repair shop soon. If you see a lot of blue smoke or hear a metallic noise, shut off the engine.
Symptoms
- Check engine light on
- Loss of power or limp mode with boost limitation
- Jerking under load possible
Most likely causes
- Connector loose or not fully engaged, or sensor not seated properly
- Wire interrupted, short to ground or 5 V reference missing
- Leak at the sensor flange or seal
- Engine control module faulty
What to check, in order
Start with the simplest. You can tick off each step.
Good to know
- Repair difficulty: easy
- It can trigger limp mode.
- It affects emissions.
What each character of P00F8 means
- P: Powertrain: engine and transmission
- 0: Generic code: same on every make
- 0: Subsystem depends on the code range
- F8: Specific fault in that system
Frequently asked questions
Can I keep driving with code P00F8?
Drive without demanding power and go to a repair shop soon. If you see a lot of blue smoke or hear a metallic noise, shut off the engine.
What causes code P00F8?
The most common causes are: connector loose or not fully engaged, or sensor not seated properly; wire interrupted, short to ground or 5 V reference missing; leak at the sensor flange or seal.
Related codes
- P00F9Turbocharger Outlet Pressure Sensor A Range/Performance
- P00FATurbocharger Outlet Pressure Sensor A Circuit Low
- P0236Turbocharger/Supercharger Boost Sensor A Circuit Range/Performance
- P0299Turbocharger/Supercharger A Underboost Condition
- P0234Turbocharger/Supercharger A Overboost Condition
Sources
Values and procedures vary by manufacturer. If it affects brakes, steering, fuel or high voltage, see a professional. Updated: 2026-11-04. How we build these pages.