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 the computer in your car is seeing a higher than normal voltage from the sensors that help control how the engine's valves open and close. It's like getting too much power to a light bulb, which can cause problems.
The P1019 code indicates that the voltage level from the Variable Valve Lift (VVL) sensors is higher than the expected range for Bank 1.
The VVL system is responsible for adjusting the lift of the engine's intake or exhaust valves to optimize performance and efficiency. The sensors involved in this system provide critical feedback to the engine control module (ECM). If the voltage from these sensors is too high, it can indicate a wiring issue, a faulty sensor, or a problem with the ECM itself.
• Check Engine Light illuminated
• Poor engine performance
• Decreased fuel efficiency
• Faulty VVL sensor
• Wiring issues such as shorts or open circuits
• Malfunctioning ECM
ECM: Engine Control Module
VVL: Variable Valve Lift
• Use an OBD-II scanner to confirm the P1019 code.
• Inspect the wiring and connectors for the VVL sensors on Bank 1.
• Test the VVL sensor for proper operation and voltage levels.
• Repair or replace damaged wiring or connectors.
• Replace the faulty VVL sensor.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$100 - $500
Moderate
• Nissan Altima
• Infiniti G35
• Nissan Maxima
• Regular maintenance checks
• Ensure proper electrical connections
• Use quality replacement parts
Sensor Issue
• Avoid driving the vehicle aggressively until the issue is resolved.
• Consult with a professional mechanic for an accurate diagnosis.
Check your vehicle's warranty for coverage on engine control components.
This code has been associated with vehicles that have variable valve timing systems, particularly those with higher mileage.
Moderate – It is advisable to address this issue soon to avoid potential engine performance problems.
Driving with an illuminated Check Engine Light can lead to further damage. Always ensure your vehicle is safe to operate.
• Engine at operating temperature
• Vehicle stationary or at idle
The VVL sensors are typically located near the cylinder head on Bank 1 of the engine.
Q: Can I drive my car with the P1019 code?
A: While you may be able to drive short distances, it's best to have the issue diagnosed and repaired to prevent further damage.
Q: What happens if I ignore the P1019 code?
A: Ignoring this code can lead to poor engine performance and decreased fuel efficiency, and may result in more severe engine damage over time.
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