OBD2 Error Code P0326: How to Fix It

Q: Can I drive with P0326 code?

You can drive short distances with P0326, but it's not recommended long-term. The knock sensor protects your engine from damage, so driving without a functioning sensor could lead to engine knock and serious internal damage.

Q: What causes P0326 error code?

P0326 is typically caused by a faulty knock sensor, damaged wiring to the sensor, corrosion in the electrical connections, or rarely, issues with the engine control module (ECM).

Q: How much does it cost to fix P0326?

DIY repair costs range from $50-150 for a replacement knock sensor. Professional repair costs typically range from $200-400 including labor, depending on sensor location and vehicle complexity.

Q: Will P0326 cause my car to fail emissions test?

Yes, P0326 will likely cause your vehicle to fail an emissions test since it's an active diagnostic trouble code. The code must be cleared and the issue resolved before passing emissions testing.

Q: What's the difference between Bank 1 and Bank 2 knock sensors?

Bank 1 contains cylinder #1, while Bank 2 is the opposite side on V-engines. On inline engines, there's typically only one bank. P0326 specifically refers to the Bank 1 knock sensor circuit.

Abstract

Error code P0326 indicates a problem with your engine's knock sensor circuit on Bank 1, which monitors engine knock or ping. This sensor helps your engine control module (ECM) adjust timing to prevent engine damage from pre-ignition.