How much does it cost to fix P0326?

Typical repair cost is $100–$500.

P0326 — Knock Sensor 1 Range/Performance

Medium Severity · Engine

OBD-II code P0326 means your vehicle's ECU detected: Knock Sensor 1 Range/Performance. Below: causes, step-by-step fixes, and repair cost — free, no signup needed.

Drivable short-term but schedule a diagnosis soon. Prolonged driving can worsen the issue.

Typical Repair Cost

$100–$500

Parts + labor, national average

Severity

Medium

Schedule repair soon

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Common Causes of P0326

Failing knock sensor
Actual engine detonation

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How to Fix Code P0326

Check for engine knock noise

Replace knock sensor if no knock present

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FAQ — Code P0326

What does OBD-II code P0326 mean?

P0326 means your vehicle's onboard computer detected: Knock Sensor 1 Range/Performance. This is a medium-severity code in the Engine category.

How much does it cost to fix code P0326?

Typical repair cost for P0326 is $100–$500 including parts and labor. Costs vary by vehicle make, model, and location. A free scan at AutoZone or O'Reilly is a good first step.

Can I drive my car with code P0326?

Code P0326 is generally safe for short trips, but have it diagnosed soon to prevent the problem from worsening.

What are the most common causes of P0326?

The most common causes are: Failing knock sensor, Actual engine detonation. Always start with the cheapest diagnosis step before replacing parts.

Will code P0326 clear itself?

Code P0326 will clear itself after the underlying issue is fixed and the ECU completes several successful drive cycles. Clearing it without fixing the root cause only masks the problem temporarily.

Is P0326 showing on your car?

Enter your VIN for a free vehicle-specific report — recalls, specs, and market value. No signup required.

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OBD-II code data is based on SAE J2012 standards and general repair industry data. Repair costs are national averages and vary by vehicle, location, and shop. Always consult a qualified mechanic for a diagnosis specific to your vehicle.