Can I drive with P0299?

Yes, but drive carefully and get it checked soon. The turbocharger is producing less boost than commanded, causing major loss of acceleration power.

What does P0299 mean?

P0299 stands for Turbocharger/Supercharger 'A' Underboost Condition.

Symptoms you may notice

• Severe loss of passing power and sluggish acceleration
• Whooshing or fluttering air sounds when accelerating or releasing gas
• Engine feels like a non-turbo motor without boost

How much does it cost to fix?

Repair costs for code P0299 depend on the specific underlying root cause, ranging from simple DIY checks to component replacement. The table below lists the most common causes and rough price ranges in USD:

• Boost leak (cracked charge pipe or blown intercooler hose)
  $40-$180 common
• Stuck or leaking wastegate actuator / diverter valve
  $80-$280 common
• Faulty boost control solenoid valve
  $60-$160 possible
• Worn or failing turbocharger assembly
  $800-$2200 rare

What to do next

1. Visually inspect all rubber and plastic turbo boost hoses for tears or disconnected clamps.
2. Check the electronic diverter valve / blow-off valve diaphragm for rips.
3. Listen for loud rushing air or whooshing sounds under acceleration.

Related codes

About this code

Code P0299 means the engine intake manifold boost pressure is significantly below the ECU target (often 4 psi or more below spec). The car will feel very sluggish, especially when attempting to pass on the highway. In most cases, the turbo itself is fine—a popped-off silicone hose or cracked plastic diverter valve is usually the culprit.