Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that there's a problem with a part of the car engine that controls how much air gets into the engine. It's like a switch that isn't working right, and it's on the side of the engine where the second set of cylinders is.
The Variable Valve Lift (VVL) system adjusts the lift of the engine's valves to optimize performance and efficiency. A 'circuit high' condition indicates that the voltage in the control circuit is higher than expected.
The P1051 code is triggered when the Engine Control Module (ECM) detects a high voltage condition in the Variable Valve Lift (VVL) control circuit for Bank 2. This could be due to a short to power or an open circuit condition, affecting the VVL actuator's ability to function correctly.
• Check Engine Light illuminated
• Reduced engine performance
• Poor fuel economy
• Faulty VVL actuator
• Wiring issues such as a short to power
• Faulty ECM
VVL: Variable Valve Lift
ECM: Engine Control Module
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for the VVL actuator on Bank 2.
• Test the VVL actuator for proper operation.
• Repair or replace damaged wiring or connectors.
• Replace the faulty VVL actuator.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $500
Moderate
• Nissan Altima
• Infiniti G35
• Nissan Maxima
• Regular maintenance checks
• Ensure proper oil levels and quality
• Inspect wiring and connectors periodically
Engine Performance
• Do not ignore the Check Engine Light.
• Have your vehicle inspected by a professional if you notice performance issues.
Check with your vehicle's manufacturer for warranty coverage on engine components.
P1051 is a code that has been associated with Nissan and Infiniti vehicles, particularly those with advanced VVL systems.
Moderate – While the car may still run, performance and fuel economy can be affected.
Driving with a malfunctioning engine component can lead to increased emissions and may not comply with local regulations.
• Engine at operating temperature
• Vehicle in a safe, stationary position
The VVL actuator for Bank 2 is typically located on the side of the engine with the second set of cylinders.
Q: Can I drive with a P1051 code?
A: It's not recommended to drive for long periods with this code, as it can affect engine performance and fuel efficiency.
Q: What happens if I ignore the P1051 code?
A: Ignoring this code can lead to decreased engine performance and potential damage to the engine over time.
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