P0325 Code: 2026 Lamborghini – What It Means & Cost to Fix

Understanding P0325 Code and Engine Knock in Your 2026 Lamborghini SVJ

The P0325 diagnostic trouble code in your 2026 Lamborghini SVJ indicates a malfunction in the engine knock sensor circuit. This is a critical issue that requires immediate attention to prevent catastrophic engine damage. Engine knock, also known as detonation, occurs when the air-fuel mixture ignites prematurely or unevenly in the combustion chamber, creating a knocking sound and potentially devastating effects on your high-performance V12 engine.

The SVJ's naturally aspirated 6.5-liter V12 engine operates at extremely high compression ratios and precise timing tolerances. When the knock sensor system fails or detects persistent knocking, it triggers the P0325 code as a protective measure. However, continued operation can result in complete engine failure within minutes.

Recognizing the Symptoms of P0325 Code and Engine Knock

Early detection of engine knock symptoms in your Lamborghini SVJ is crucial for preventing expensive repairs. Watch for these warning signs:

• Metallic knocking or pinging sounds from the engine, especially during acceleration or under load
• Check engine light illuminated on the dashboard
• Reduced engine performance and power output
• Rough idle or engine misfiring
• Engine hesitation during acceleration
• Unusual vibrations felt through the steering wheel or chassis
• Engine management system entering limp mode to protect the engine

In high-performance vehicles like the SVJ, these symptoms may be more pronounced due to the engine's aggressive tuning and high-stress operating conditions.

Common Causes of P0325 Code in 2026 Lamborghini SVJ

Carbon Buildup in Combustion Chambers

The most probable cause of engine knock in your SVJ is carbon deposit accumulation on pistons and combustion chamber surfaces. These deposits create hot spots that cause premature ignition of the air-fuel mixture. High-performance engines with direct injection systems are particularly susceptible to carbon buildup, especially when driven primarily in city conditions or not regularly exercised at high RPMs.

Knock Sensor Failure

A malfunctioning knock sensor cannot properly detect detonation events, allowing the engine control unit (ECU) to maintain timing settings that cause knock. The SVJ uses sophisticated piezoelectric knock sensors that can fail due to heat exposure, vibration, or electrical issues. When the sensor fails, the P0325 code triggers, but the underlying knock condition may persist undetected.

Incorrect Fuel Octane Rating

The SVJ requires premium gasoline with a minimum octane rating of 91 (Research Octane Number). Using lower octane fuel, especially under high-load conditions like track driving or spirited acceleration, can cause knock and detonation. Some regions may require even higher octane ratings for optimal performance.

Engine Timing Issues

Incorrect ignition timing or variable valve timing (VVT) malfunctions can cause knock in the SVJ's precision-engineered V12. The engine relies on exact timing coordination between intake valves, exhaust valves, and ignition events. Any deviation can result in abnormal combustion and knock conditions.

Internal Engine Damage

In severe cases, persistent knocking may indicate internal engine damage such as worn rod bearings, damaged pistons, or compromised cylinder walls. This is the most serious scenario and typically requires complete engine rebuilding or replacement.

Professional Diagnosis of P0325 Code

Diagnosing P0325 code in a 2026 Lamborghini SVJ requires specialized equipment and expertise. Professional technicians will perform:

• OBD-II scan to confirm P0325 and identify additional codes
• Knock sensor circuit testing using oscilloscopes and multimeters
• Engine sound analysis using electronic stethoscopes
• Compression testing to assess internal engine condition
• Fuel system analysis including injector flow testing
• Timing verification using specialized Lamborghini diagnostic tools
• Carbon deposit inspection via borescope examination

Only authorized Lamborghini service centers have access to the proprietary diagnostic software and technical bulletins necessary for accurate diagnosis of the SVJ's complex engine management system.

Repair Options for P0325 Code

Professional Repair Only

Due to the complexity and precision requirements of the SVJ's engine, all P0325-related repairs must be performed by qualified professionals. Attempting DIY repairs on this vehicle could void your warranty and potentially cause additional damage worth tens of thousands of dollars.

Common Repair Procedures

• Knock sensor replacement: Installing new OEM sensors and recalibrating the engine management system
• Carbon cleaning service: Professional walnut shell blasting or chemical cleaning of combustion chambers
• Timing adjustment: Correcting ignition timing or repairing VVT components
• Fuel system service: Cleaning injectors and fuel rails to ensure proper fuel delivery
• Engine rebuild: Complete disassembly and reconstruction in cases of internal damage

Cost Breakdown for P0325 Repairs

Repair costs for P0325 code in a 2026 Lamborghini SVJ vary significantly based on the root cause:

• Knock sensor replacement: $2,500 - $3,500 (including labor and calibration)
• Carbon cleaning service: $1,500 - $2,500
• Timing system repair: $3,000 - $5,000
• Fuel system service: $1,200 - $2,000
• Complete engine rebuild: $50,000 - $100,000+

These estimates reflect the premium nature of Lamborghini parts and the specialized labor required. Extended warranties may cover some repairs, depending on the specific cause and vehicle history.

Prevention Strategies

Prevent P0325 code recurrence and protect your SVJ's engine with these maintenance practices:

• Use only premium fuel with appropriate octane rating for your region
• Schedule regular carbon cleaning services every 15,000-20,000 miles
• Perform Italian tune-ups regularly by driving at high RPMs to prevent carbon buildup
• Maintain proper service intervals for oil changes and filter replacements
• Address check engine lights immediately rather than continuing to drive
• Use top-tier gasoline with detergent additives when possible
• Allow proper warm-up periods before aggressive driving