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 car's computer has detected a problem with a sensor that helps control how the engine breathes. It's like when your nose is blocked, and you can't breathe properly.
The VVL (Variable Valve Lift) system adjusts the lift of the engine's valves for better performance and efficiency. The reference sensor helps monitor this system, and an error indicates it is not resetting correctly.
The P1013 code is triggered when the Engine Control Module (ECM) detects that the VVL reference sensor on Bank 1 is not resetting as expected. This sensor is crucial for monitoring the position and operation of the variable valve lift system, which adjusts the valve lift for optimal engine performance.
• Check Engine Light is on
• Poor engine performance
• Reduced fuel efficiency
• Faulty VVL reference sensor
• Wiring issues such as damaged connectors or short circuits
• Faulty ECM (Engine Control Module)
VVL: Variable Valve Lift
ECM: Engine Control Module
• Use an OBD-II scanner to confirm the P1013 code
• Inspect the VVL reference sensor and its wiring for damage
• Test the sensor and ECM for proper operation
• Replace the faulty VVL reference sensor
• Repair or replace damaged wiring or connectors
• Reprogram or replace the ECM if necessary
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $500
Moderate
• Honda Accord
• Acura TSX
• Honda Civic
• Regular maintenance and inspection of engine sensors
• Keep the engine's electrical system in good condition
• Use high-quality engine oil and filters
Sensor Issue
• Do not ignore the Check Engine Light
• Have the vehicle inspected by a professional mechanic
• Avoid driving aggressively until the issue is resolved
Check with your vehicle's manufacturer for warranty coverage on the VVL system and related components.
The P1013 code has been associated with vehicles using advanced VVL systems, particularly in models from the early 2000s onward.
Moderate – It is important to address this issue to prevent further engine performance problems.
Driving with a malfunctioning VVL system can lead to increased emissions and reduced vehicle performance. Ensure repairs are conducted in compliance with local regulations.
• Engine at operating temperature
• Vehicle idling or under light load
The VVL reference sensor is typically located near the top of the engine, close to the camshaft.
Q: Can I drive with a P1013 code?
A: While you may be able to drive with this code, it is not recommended as it can lead to poor engine performance and increased emissions.
Q: How do I clear a P1013 code?
A: After repairs, use an OBD-II scanner to clear the code. If the issue is fixed, the code should not return.
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