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 that the engine in cylinder 2 is making more noise than expected. It's like the engine is knocking or vibrating too much, which isn't good.
The engine control module (ECM) monitors the knock sensor for each cylinder to ensure that the combustion process is smooth. If the sensor detects excessive vibration or noise from cylinder 2, it triggers this code.
P2337 indicates that the knock sensor for cylinder 2 has detected vibrations above the normal threshold levels. This could be due to engine knocking or pinging, which can occur if the air-fuel mixture is not burning correctly.
• Check Engine Light is on
• Engine knocking noise
• Reduced engine performance
• Faulty knock sensor
• Poor quality fuel
• Engine timing issues
ECM: Engine Control Module
OBD-II: On-Board Diagnostics II
• Use an OBD-II scanner to confirm the code.
• Inspect the knock sensor and its wiring for damage.
• Check the fuel quality and engine timing.
• Replace the knock sensor if faulty.
• Use higher quality fuel.
• Adjust the engine timing as needed.
• OBD-II scanner
• Multimeter
• Wrench set
$100 - $300
Moderate
• Toyota Camry
• Honda Accord
• Ford F-150
• Use high-quality fuel.
• Regularly maintain engine timing.
• Inspect knock sensors periodically.
Sensor Issue
• Do not ignore the Check Engine Light.
• Have the vehicle inspected by a professional.
• Consider using premium fuel if recommended by the manufacturer.
Check with the vehicle manufacturer for specific warranty coverage related to engine sensors.
This code has been associated with issues in vehicles that have a history of using low-quality fuel or have not been regularly maintained.
Moderate – It should be addressed soon to prevent potential engine damage.
Ignoring engine codes can lead to increased emissions and potential engine damage.
• Engine at operating temperature
• Vehicle in drive
The knock sensor is typically located on the engine block, cylinder head, or intake manifold.
Q: What happens if I ignore this code?
A: Ignoring this code can lead to engine damage due to knocking and reduced performance.
Q: Can I drive my car with this code?
A: It's possible to drive, but it's not recommended as it can cause further damage.
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