P0299 on Nissan: How to Diagnose & Fix
Turbo/Supercharger Underboost Condition
3 Nissan models · 3 documented issues · 2 critical · $200-$4,000 repair
P0299 on Nissan by model: symptoms, diagnosis and fix
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.
Common Symptoms
- Blue or white smoke from exhaust
- Loss of boost/power
- Excessive oil consumption
- Whining or grinding noise from turbo
- Check engine light with boost-related codes
How to Fix
Replace turbocharger assembly. Use genuine Nissan or quality aftermarket turbo (Garrett or BorgWarner). Change oil filter and inspect intake for metal debris. Use only full synthetic 5W-30 oil and change every 5,000 miles. Turbo replacement: $1,200-2,500.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- Genuine Nissan Juke turbocharger 14411-1KC1E
Because other turbo configurations overlap these years, confirm VIN, trim/NISMO RS status and installed OE number before ordering.
- Genuine Nissan turbocharger oil-feed tube 15192-1KC0E
Confirm VIN because later standard/NISMO configurations may catalog 15192-BV80A; use the exact current part selected by Nissan catalog/installer.
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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.
Common Symptoms
- Oil smell from engine bay
- Visible oil on turbo housings
- Smoke from engine bay after hard driving
- Oil dripping on exhaust
- Low oil level between changes
How to Fix
Replace turbo oil feed and return line sealing washers with new copper crush washers. Inspect oil lines for cracking. Some owners upgrade to braided stainless steel oil lines. Cost: $200-800 at a GT-R specialist. Critical to address immediately due to fire risk.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- Genuine Nissan R35 turbo oil-feed eye-bolt gasket 15189-69F00
Confirm VIN, exact joint and required quantity from the service diagram before ordering.
- Genuine Nissan left turbo oil feed line 15192-JF00C
VIN-confirm part and all required seals/bolts.
- Genuine Nissan right turbo oil feed line 15192-JF01B
VIN-confirm part and all required seals/bolts.
As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.
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.
Common Symptoms
- Metallic rattling at idle
- Rattle during cold start
- Noise from turbo area at low RPM
- Rattle diminishes under boost
- Check engine light in severe cases
How to Fix
Dealer may replace turbocharger assembly under warranty if noise is excessive. Aftermarket turbo blankets can dampen the noise. Some tuners install external wastegate setups to eliminate the issue entirely. Cost if out of warranty: $2,000-4,000 per turbo.
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 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 it is documented across 3 models: Juke, GT-R, Z.
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 Nissan?
Published repair estimates on Nissan range from $200 to $4,000 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
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.