Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means the car's computer found a problem with a sensor that helps control how the engine breathes. It's like if your lungs weren't working right because a sensor was giving the wrong information.
The code indicates an issue with the Variable Valve Lift (VVL) system, specifically a sensor that helps guide the valve lift on the second bank of the engine.
P1011 is triggered when the Engine Control Module (ECM) detects a discrepancy in the gradient or signal from the VVL guiding sensor on Bank 2. This sensor is crucial for adjusting the valve lift to optimize engine performance and efficiency.
• Check Engine Light is on
• Reduced engine performance
• Poor fuel economy
• Faulty VVL guiding sensor
• Wiring issues or poor connections
• Malfunctioning ECM
VVL: Variable Valve Lift
ECM: Engine Control Module
• Use an OBD-II scanner to confirm the code
• Inspect the VVL guiding sensor and its wiring
• Test the sensor's signal with a multimeter
• Replace the faulty VVL guiding sensor
• Repair or replace damaged wiring
• Reprogram or replace the ECM if necessary
• OBD-II scanner
• Multimeter
• Socket set
$150 - $400
Moderate
• Nissan Altima
• Infiniti G35
• Nissan Maxima
• Regular maintenance checks
• Ensure good electrical connections
• Use high-quality engine oil
Sensor Issue
• Avoid driving aggressively until repaired
• Get the vehicle checked by a professional mechanic
Check if the vehicle is still under warranty for powertrain components.
This code has been associated with VVL issues in certain models, often due to sensor or wiring problems.
Moderate – Address the issue soon to avoid further engine performance problems.
Driving with a malfunctioning VVL system can lead to increased emissions and reduced engine efficiency.
• Engine at operating temperature
• Vehicle stationary
The VVL guiding sensor is typically located on the cylinder head of Bank 2.
Q: Can I drive with code P1011?
A: It's not recommended as it can lead to poor engine performance and fuel economy.
Q: What happens if I ignore the P1011 code?
A: Ignoring the code can result in decreased engine efficiency and potential long-term damage.
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