P0326

Knock/Combustion Vibration Sensor A Circuit Range/Performance

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$33–89 (est.)

Symptoms

Reduced engine power
Deterioration in acceleration dynamics
The appearance of detonation (knock) in the engine
Increased fuel consumption
Check Engine Light Illuminates

Causes

Knock sensor malfunction
Open or short circuit in wiring harness
Poor contact in the sensor connector
Mechanical damage to the sensor
Problems with the ECU

How to Fix

Visually inspect the sensor and wiring harness for damage
Sensor resistance check (compare with manufacturer specifications)
Checking the voltage and signal of the sensor using an oscilloscope
Clean or replace connectors as necessary
Replacing the knock sensor if its malfunction is confirmed

Related codes

P0325 P0327 P0328 P0330