P00B0
Turbocharger/Supercharger Boost Control B Module Performance
Turbo / boost control
Generic OBD-II
High
What it means
P00B0 means the engine computer has detected that the "B" turbocharger or supercharger boost-control module isn't performing as expected — it isn't delivering the boost the computer commands. That usually points to the boost-control actuator, wastegate, or its wiring rather than a failed turbo, and the engine often drops into reduced-power mode to protect itself.
High
Can I keep driving? You can usually drive, but expect reduced power or limp mode — have the boost-control system checked before it strains the turbo.
Common symptoms
What you'll notice
- Check-engine light on
- Reduced power or limp/failsafe mode
- Over- or under-boost (surging or flat acceleration)
- Whistling or fluttering from the turbo in some cases
Common causes
Most likely first
- Faulty boost-control module or actuatorLikely
- Wastegate stuck open or closedCommon
- Vacuum or boost leaks in the intake or control hosesCommon
- Boost pressure sensor reading out of specLess often
- Wiring or connector faults in the boost-control circuitLess often
- Turbocharger wear or internal oil leakLess often
How to diagnose & fix
Work through it in order
- Read freeze-frame data and check for other boost or turbo codes.
- Inspect boost-control hoses and the intake tract for leaks.
- Check the wastegate and actuator for free, correct movement.
- Verify the boost pressure sensor reading against actual boost on a scan tool.
- Inspect the boost-control module wiring and connectors; replace the module or actuator if faulty.
FAQ
Quick answers
Is it safe to drive with P00B0?+
Short trips are usually okay, but reduced power or limp mode makes it unsafe to load the engine. Get the boost-control system diagnosed before hard driving or towing.
Can I just clear P00B0?+
It will come back until the boost-control fault is repaired, and clearing it also erases the freeze-frame data that helps pinpoint the cause.
Related codes
Often seen with P00B0
Read & clear P00B0 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.
✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX