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 thinks there's something wrong with the sensors that help control how the engine breathes, like when you take a deep breath. It's like the car is confused about how much air it should be getting.
This code indicates an issue with the Variable Valve Lift (VVL) sensors on Bank 1 of the engine. The engine control module (ECM) detects a discrepancy between the expected and actual sensor readings.
The P1017 code is triggered when the ECM detects a fault in the plausibility of the VVL sensors on Bank 1. This could be due to incorrect sensor readings, a malfunctioning sensor, or issues with the wiring or connectors. The VVL system adjusts the lift of the engine's intake valves to optimize performance and efficiency.
• Check Engine Light is on
• Reduced engine performance
• Poor fuel economy
• Faulty VVL sensor
• Wiring issues or poor connection
• Malfunctioning ECM
VVL: Variable Valve Lift
ECM: Engine Control Module
• Use an OBD-II scanner to confirm the code.
• Inspect the VVL sensor and wiring for damage.
• Test the sensor's output and compare it to specifications.
• Replace the faulty VVL sensor.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Socket set
$150 - $500
Moderate
• BMW 3 Series
• BMW 5 Series
• Mini Cooper
• Regularly inspect and maintain engine sensors.
• Ensure all electrical connections are secure.
• Follow the manufacturer's maintenance schedule.
Sensor Issue
• Do not ignore the Check Engine Light.
• Have the vehicle inspected by a professional mechanic.
• Avoid hard driving until the issue is resolved.
Check with your vehicle's manufacturer for warranty coverage on engine components.
This code has been associated with vehicles using advanced variable valve timing systems, which have become more common in modern engines.
Moderate – It's important to address this issue to prevent potential engine performance problems.
Driving with a malfunctioning engine sensor can lead to increased emissions and may not be compliant with local emissions regulations.
• Engine at operating temperature
• Vehicle in a safe, stationary position
The VVL sensors are located on the cylinder head of the engine, typically near the intake camshaft.
Q: Can I drive with a P1017 code?
A: It's not recommended to drive for extended periods with this code, as it can affect engine performance and fuel efficiency.
Q: How do I reset the Check Engine Light after repairs?
A: Use an OBD-II scanner to clear the code, or disconnect the battery for a few minutes to reset the ECM.
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