P0299Medium urgency

Turbocharger/Supercharger Engine Underboost

Engine · Forced Induction

⚠️ Power loss under acceleration. Safe to drive gently. Avoid highway merging or towing until repaired. Service within 1 week.

What this means

Actual boost pressure is significantly below the target requested by the ECU. The turbocharger or supercharger is not producing adequate boost, causing power loss under load.

Likely causes

Boost leak — split intercooler hose or pipeMost common
Stuck-open wastegateMost common
Failed boost control solenoidCommon
Worn turbochargerCommon
Clogged air filterLess common

Estimated repair cost

Boost hose repair$50 – $300

Wastegate repair$200 – $1,000

Boost solenoid$80 – $250

Turbocharger replacement$800 – $3,500

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Frequently asked questions about P0299

What does P0299 mean?

Actual boost pressure is significantly below the target requested by the ECU. The turbocharger or supercharger is not producing adequate boost, causing power loss under load.

Is P0299 serious?

Power loss under acceleration. Safe to drive gently. Avoid highway merging or towing until repaired. Service within 1 week.

How much does it cost to fix P0299?

Repair costs for P0299 range from $50 – $300 depending on the root cause and your vehicle.

Can I drive with P0299?

You can drive short distances but should have it repaired within 1–2 weeks to prevent further damage.

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