P0250 — Turbocharger Wastegate Solenoid B Low
Drive with caution — fix soon.
What P0250 means
This code means the engine computer detected low voltage (or a short to ground) in the wastegate solenoid circuit B. With a weak or grounded signal, the solenoid can't regulate boost, which usually shows up as a loss of power. It's commonly fixed by repairing shorted or corroded wiring, replacing the solenoid, or cleaning the electrical connector.
Common symptoms
- Check engine light is on
- Loss of power or weak turbo response
- Engine hesitation under acceleration
- Lower than normal boost pressure
- Reduced fuel efficiency
Common causes
- Short to ground in the solenoid wiring (circuit B)
- Faulty wastegate solenoid (circuit B)
- Corroded or loose electrical connector
- Damaged wiring harness near the turbo
- Internal solenoid coil failure
Typical repair cost
$150 – $450
Varies by vehicle and root cause.
Frequently asked questions
Can I keep driving with a P0250 code?
For short trips, usually yes, but don't push it. The turbo can't control boost properly, so power may be limited. Drive gently and have it checked soon.
How much does it cost to fix a P0250 code?
Most fixes range from $150 to $450. A wiring or connector repair is cheaper, while a new solenoid costs more. Diagnostic time is generally included.
Is a P0250 code serious?
It's a moderate concern. The car still runs, but long-term driving with poor boost control can wear the turbo. It's best to fix it before symptoms worsen.
What does 'low' mean in a P0250 code?
'Low' means the computer sees low voltage in the 'B' solenoid circuit, often from a short to ground or a failing solenoid. This prevents proper boost control. A technician can determine whether it's wiring or the part itself.