P052E on Nissan: How to Diagnose & Fix
Positive Crankcase Ventilation Regulator Valve Performance
1 Nissan model · 1 documented issue · $50-$4,000 repair
P052E on Nissan by model: symptoms, diagnosis and fix
The VQ35DE 3.5L V6 in the 2016-2023 Maxima can develop excessive oil consumption, burning 1 quart every 1,500-3,000 miles. The issue is more prevalent in higher-mileage examples and is caused by piston ring wear and PCV system issues. Low oil levels can damage the catalytic converters.
Common Symptoms
- Oil level drops between changes
- Blue smoke on hard acceleration
- Catalytic converter efficiency codes (P0420/P0430)
- Spark plug fouling
- Low oil pressure warning
How to Fix
Monitor oil level weekly and top off as needed. Use 0W-20 full synthetic oil. Replace PCV valve (part# 11810-6N202) as a first step. If consumption exceeds 1 qt per 1,000 miles, piston ring replacement may be necessary ($2,000-4,000).
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- Genuine Nissan PCV valve 11810-EA200
OEM catalog confirms 2016-2023 Maxima VQ35DE. Provide VIN and confirm installed part before ordering.
- Mobil 1 Advanced Fuel Economy 0W-20 full synthetic oil, 5 quart
Confirm the exact model-year owner manual, API specification, capacity and current oil already in the engine; do not overfill or treat oil as a repair.
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P052E 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 P052E mean on a Nissan?
P052E stands for "Positive Crankcase Ventilation Regulator Valve Performance." P052E indicates a performance problem with the positive crankcase ventilation (PCV) regulator valve, the valve that meters blow-by gases from the engine crankcase back into the intake to be burned. The computer monitors crankcase pressure or related readings, and when the PCV regulator isn't controlling flow within the expected range, it sets this code. Symptoms can include rough idle, oil leaks from seals due to pressure imbalance, whistling/sucking noises, or increased oil consumption. It points to the PCV valve or ventilation system rather than the fuel or ignition system. On Nissan it is documented across 1 model: Maxima.
What are the most common causes of P052E?
The most common causes of P052E are: Stuck, clogged, or failed PCV regulator valve, Cracked or disconnected PCV hose/line, Vacuum leak in the crankcase ventilation system, Clogged PCV passages from sludge or carbon, Faulty crankcase pressure sensor, Damaged valve cover with integrated PCV (where applicable), Wiring or connector fault on electrically controlled PCV valves. The specific cause varies by vehicle.
How much does it cost to fix P052E on a Nissan?
Published repair estimates on Nissan range from $50 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 P052E on a different make?
View P052E 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.