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's brain that controls how the engine gets fuel and air. It's like if a switch that turns on a light bulb isn't working, so the bulb doesn't light up.
The P11F2 code indicates an issue with the circuit that controls the Variable Valve Lift (VVL) and the fuel injection relay. This can affect how the engine performs.
The VVL and Injection Relay Control Circuit is responsible for managing the timing and lift of the engine's valves, as well as controlling the fuel injection system. An open circuit or fault in this control system can lead to suboptimal engine performance and efficiency.
• Check Engine Light is on
• Poor engine performance
• Increased fuel consumption
• Faulty VVL relay
• Open or shorted wiring in the control circuit
• Defective engine control module (ECM)
VVL: Variable Valve Lift
ECM: Engine Control Module
• Use an OBD-II scanner to confirm the code
• Inspect the wiring and connectors for damage
• Test the VVL relay for proper operation
• Replace faulty VVL relay
• Repair or replace damaged wiring
• Reprogram or replace the ECM if necessary
• OBD-II scanner
• Multimeter
• Wiring diagram
$150 - $500
Moderate
• Nissan Altima
• Nissan Maxima
• Infiniti G35
• Regular maintenance checks
• Ensure all electrical connections are secure
• Use quality fuel and oil
Engine Performance
• Avoid driving aggressively until the issue is resolved
• Schedule a service appointment promptly
Check vehicle warranty for coverage on engine control components
This code has been associated with Nissan and Infiniti vehicles equipped with VVL technology.
Moderate – Should be addressed soon to prevent further engine issues.
Driving with this code can lead to engine damage and increased emissions.
• Engine at operating temperature
• Vehicle in park or neutral
The VVL relay is typically located in the engine bay, near the fuse box or ECM.
Q: Can I drive my car with a P11F2 code?
A: It's possible, but not recommended. Driving with this code can lead to poor performance and potential engine damage.
Q: How urgent is fixing a P11F2 code?
A: It's moderately urgent. You should address it soon to avoid further issues.
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