Can an exhaust leak cause P0328?

Yes — an exhaust leak near the knock sensor can create vibrations that the sensor interprets as knock.

What if P0328 comes back after replacing the sensor?

There may be actual engine knock from carbon buildup, low octane fuel, or a mechanical problem causing excessive vibration.

Medium Severity

Ignition System

Knock sensor signal is too high. Could be a noisy engine or a sensor fault.

Common Fix

Replace knock sensor or fix engine noise

Estimated Cost (DIY)

$20 - $200

Engine mechanical noise being misreadlikely

Faulty sensorpossible

Short in wiringpossible

Need to read or clear this code?

Can an exhaust leak cause P0328?: Yes — an exhaust leak near the knock sensor can create vibrations that the sensor interprets as knock.
What if P0328 comes back after replacing the sensor?: There may be actual engine knock from carbon buildup, low octane fuel, or a mechanical problem causing excessive vibration.

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