P0299 on Kia: How to Diagnose & Fix
Turbo/Supercharger Underboost Condition
1 Kia model · 1 documented issue · 1 critical
P0299 on Kia by model: symptoms, diagnosis and fix
NHTSA recall 24V169000 (Kia SC300) covers certain 2018-2023 Stinger vehicles with the 3.3L turbocharged engine. The left turbocharger oil-feed pipe and hose assembly can deteriorate and leak oil onto hot exhaust components, increasing fire risk.
Common Symptoms
- Burning-oil odor or smoke from the engine compartment
- Visible oil leakage near the left turbocharger
How to Fix
Check the VIN for recall 24V169000/SC300. If burning oil, smoke or active leakage appears, stop safely and arrange service. A Kia dealer replaces the left turbocharger oil-feed pipe and hose assembly free of charge. Do not infer P0234/P0299, turbocharger damage or a need for generic gaskets or a boost gauge from this recall.
Sources for this issue (1)
P0299 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P0299 mean on a Kia?
P0299 stands for "Turbo/Supercharger Underboost Condition." P0299 means the engine computer detected an underboost condition — the turbocharger or supercharger is producing less boost pressure than the PCM expects for the given conditions. The computer compares the manifold/boost pressure sensor reading to a target based on engine load, and when actual boost falls short, it sets this code. The most common real-world cause is a leak somewhere in the intake/charge-air path. You'll typically feel reduced power or sluggish acceleration, and the engine may go into a reduced-power mode. On Kia it is documented across 1 model: Stinger.
What are the most common causes of P0299?
The most common causes of P0299 are: Boost/intake leak (cracked or loose charge-air hose or intercooler), Faulty or sticking turbo wastegate or actuator, Stuck or clogged variable-geometry turbo vanes (VGT), Faulty boost pressure or MAP sensor, Leaking or disconnected vacuum/boost control lines, Restricted air intake or clogged air filter, Failed boost control solenoid, Worn or failing turbocharger. The specific cause varies by vehicle.
How much does it cost to fix P0299 on a Kia?
Repair costs vary widely with the root cause and Kia model; each issue on this page carries its own estimate where one is published.
Looking for P0299 on a different make?
View P0299 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.