P0299 on Nissan
Turbo/Supercharger Underboost Condition
P0299 on Nissan vehicles indicates turbo/supercharger underboost condition. Au7o has documented this code across 3 Nissan models — most commonly on GT-R, Juke, Z. 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. Typical repair costs on Nissan range from $200 to $4,000, depending on the specific model and root cause.
Common Causes of P0299
- •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
P0299 on Nissan by Model
Nissan GT-R(1 issue)
- Turbo Oil Feed Line Leak (VR38DETT Engine)2009-2016
The GT-R VR38DETT twin-turbo engine can develop oil leaks from the turbocharger oil feed and return lines. The banjo bolt sealing washers degrade over time, causing oil to drip onto the hot exhaust components - a potential fire hazard. This is more common on 2009-2016 models and after high-boost tuning.
Nissan Juke(1 issue)
- Turbocharger Failure (MR16DDT Engine)2011-2017
The Nissan Juke MR16DDT 1.6L turbo engine suffers from premature turbocharger failure. The turbo bearings wear out, causing oil consumption, smoke, and eventual boost loss. Turbo failure often sends metal debris into the engine, requiring additional repairs. The issue is exacerbated by infrequent oil changes or use of non-synthetic oil.
Nissan Z(1 issue)
- Twin-Turbo Wastegate Rattle (VR30DDTT Engine)2023-2025
The 2023+ Nissan Z uses the VR30DDTT 3.0L twin-turbo V6 (shared with Infiniti) which develops a wastegate rattle at idle and low RPM. The internal wastegate actuators develop play, creating a metallic rattling sound. While primarily a noise issue, it can indicate wastegate valve wear. Nissan has acknowledged the issue but not issued a formal recall.
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View P0299 across all makes →Frequently Asked Questions
What does P0299 mean on Nissan?▼
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 Nissan specifically, this code is documented across 3 models.
What causes P0299 on Nissan vehicles?▼
Common causes on Nissan: 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. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0299 on a Nissan?▼
Repair costs on Nissan range from $200 to $4,000, depending on the specific model and root cause.
Which Nissan models have P0299 documented?▼
Au7o has documented P0299 on 3 Nissan models: GT-R, Juke, Z.