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 a sensor in the car that listens for unusual engine noises is reporting a problem. It's like when your ear hurts and you can't hear well.
The P1328 code is triggered when the Engine Control Module (ECM) detects a high voltage signal from the knock sensor circuit on bank 1.
The knock sensor is designed to detect engine knocking or pinging, which is a result of abnormal combustion in the engine's cylinders. This sensor sends a voltage signal to the ECM. If the signal is too high, it indicates a possible circuit issue or sensor malfunction.
• Check Engine Light is on
• Poor engine performance
• Increased fuel consumption
• Faulty knock sensor
• Wiring issues such as short circuits
• ECM malfunction
Knock Sensor: A device that detects engine knocking or pinging.
ECM: Engine Control Module, the computer that controls engine functions.
• Use an OBD-II scanner to confirm the code.
• Inspect the knock sensor and its wiring for damage.
• Test the sensor's voltage output with a multimeter.
• Replace the faulty knock sensor.
• Repair or replace damaged wiring.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Socket set
$100 - $300
Moderate
• Toyota Camry
• Honda Accord
• Nissan Altima
• Regular maintenance checks
• Ensure proper fuel quality
• Avoid aggressive driving
Sensor Issue
• Do not ignore the Check Engine Light.
• Consult a professional mechanic if unsure.
• Avoid driving at high speeds until fixed.
Check with the vehicle manufacturer for warranty coverage on engine sensors.
This code has been commonly reported in vehicles with high mileage or poor maintenance history.
Moderate – It should be addressed soon to prevent potential engine damage.
Driving with a malfunctioning knock sensor can lead to engine damage and increased emissions.
• Engine at operating temperature
• Vehicle stationary
The knock sensor is typically located on the engine block, cylinder head, or intake manifold.
Q: Can I drive with a P1328 code?
A: It's not recommended to drive for long periods with this code, as it can lead to engine damage.
Q: How do I reset the Check Engine Light after fixing the issue?
A: You can use an OBD-II scanner to clear the code after repairs.
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