P0248 — Turbocharger Wastegate Solenoid B Malfunction
Drive with caution — fix soon.
What P0248 means
This code means the engine computer detected a general fault in the wastegate solenoid for circuit B, which controls boost pressure (often on a second turbo or the other bank). When this solenoid fails, the turbo can't regulate boost properly, usually causing reduced or uneven power. It's typically fixed by replacing the faulty solenoid, repairing wiring, or clearing a blocked vacuum line.
Common symptoms
- Check engine light is on
- Loss of power or weak acceleration
- Inconsistent or surging turbo boost
- Reduced fuel efficiency
- Engine may enter reduced-power (limp) mode
Common causes
- Faulty wastegate solenoid (circuit B)
- Damaged or corroded wiring or connectors
- Clogged, cracked, or disconnected vacuum hose
- Stuck or sticking wastegate actuator
- Failing turbocharger or boost control system
Typical repair cost
$150 – $500
Varies by vehicle and root cause.
Frequently asked questions
Can I keep driving with a P0248 code?
For short trips, usually yes, but drive gently. The turbo can't control boost properly, so power may suffer. Have it checked soon to prevent further engine strain.
How much does it cost to fix a P0248 code?
Most repairs run $150 to $500. A vacuum hose or wiring fix is cheaper, while a new solenoid costs more. Diagnostic time is usually included in that range.
Is a P0248 code serious?
It's a moderate concern. The car still drives, but ignoring poor boost control can wear out the turbo or engine over time. Fixing it promptly is the smart choice.
How is P0248 different from P0244?
P0248 refers to the 'B' wastegate solenoid circuit, while P0244 is the 'A' circuit. On twin-turbo or dual-bank engines, each circuit controls a different turbo or side. The repair approach is similar, just on the other solenoid.