Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This means the car's computer thinks the first cylinder in the engine is making too much noise or shaking too much when it runs.
The engine control module (ECM) has detected that the signal from the knock sensor on cylinder 1 is above the normal threshold, indicating excessive vibration or knocking.
P2336 is triggered when the ECM detects that the knock sensor for cylinder 1 is reporting vibrations that exceed the preset threshold. This could mean that the engine is experiencing knocking, which can be harmful if not addressed. The knock sensor is designed to detect these vibrations and send signals to the ECM to adjust the engine's timing to prevent damage.
• Check engine light on
• Poor engine performance
• Engine knocking noise
• Faulty knock sensor
• Engine timing issues
• Poor quality fuel causing knocking
Knock Sensor: A device that detects engine knocking and sends signals to the ECM.
ECM: Engine Control Module, the computer that controls engine functions.
• Use an OBD-II scanner to confirm the code.
• Inspect the knock sensor and related wiring for damage.
• Check engine timing and fuel quality.
• Replace the faulty knock sensor.
• Repair or replace damaged wiring.
• Adjust engine timing and use higher octane fuel if necessary.
• OBD-II scanner
• Multimeter
• Wrench set
$100 - $300
Moderate
• Toyota Camry
• Ford F-150
• Honda Accord
• Regular engine maintenance
• Use high-quality fuel
• Check engine timing periodically
Engine Performance
• Avoid hard acceleration until the issue is fixed.
• Use higher octane fuel temporarily.
• Have the vehicle inspected by a professional.
Check with the vehicle manufacturer; some components may be covered under powertrain warranty.
This code has been associated with issues in vehicles where low-quality fuel was used or where there were known knock sensor failures.
Moderate – Addressing this issue soon can prevent engine damage.
Driving with a persistent knocking issue can lead to severe engine damage and may not comply with emissions regulations.
• Engine at operating temperature
• Vehicle in motion or under load
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 severe engine damage due to knocking.
Q: Can I drive my car with this code?
A: It's best to have the issue checked soon to avoid potential engine damage.
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