Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
The car's computer is having trouble remembering how to move a part of the engine that helps it run better.
The Variable Valve Lift (VVL) system adjusts how the engine's valves open and close to improve performance and efficiency. This code indicates that the system has not stored the necessary positions for the VVL on Bank 2.
The P1028 code is triggered when the Engine Control Module (ECM) detects that the Variable Valve Lift (VVL) system on Bank 2 has not stored any positions during its self-learning process. This can affect the engine's ability to adjust valve timing and lift for optimal performance.
• Check Engine Light is on
• Reduced engine performance
• Increased fuel consumption
• Faulty VVL actuator
• Wiring issues in the VVL circuit
• ECM software glitch
VVL: Variable Valve Lift
ECM: Engine Control Module
• Check for any other related codes
• Inspect the VVL actuator and wiring
• Perform a software update on the ECM
• Replace the VVL actuator if faulty
• Repair or replace damaged wiring
• Reprogram or update the ECM
• OBD-II scanner
• Multimeter
• Diagnostic software
$200 - $600
Moderate
• Nissan Altima
• Infiniti G35
• Nissan Maxima
• Regular maintenance of the VVL system
• Ensure ECM software is up to date
• Inspect wiring regularly
Engine Performance
• Have the vehicle inspected by a professional
• Avoid heavy acceleration until the issue is resolved
Check if the vehicle is still under warranty for powertrain components.
This code has been associated with issues in vehicles with advanced valve timing systems, particularly in models with VVL technology.
Moderate – The vehicle can still operate, but performance and efficiency may be affected.
Driving with a malfunctioning engine system can lead to increased emissions and may not comply with local regulations.
• Engine at operating temperature
• Vehicle in idle or low load conditions
The VVL actuator is typically located on the cylinder head of the engine.
Q: Can I drive with a P1028 code?
A: It's possible to drive, but it's not recommended as it can affect performance and fuel economy.
Q: How do I reset the P1028 code?
A: After repairs, use an OBD-II scanner to clear the code from the ECM.
High-End · Full-system diagnostics
A full-system bidirectional platform aimed at advanced DIY users and professional diagnostic workflows.
Network faults often require full-system access instead of a generic code reader alone.
View on Amazon
Universal · Digital multimeter
A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.
Helpful for checking voltage drops, grounds, and basic circuit health when modules are not communicating.
View on Amazon
Universal · Wire connectors and repair kit
Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.
Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.
View on AmazonThese are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.