What does a knock sensor do in a Nissan Altima?

SBC3673) MotoRad Knock Sensors respond to a wide range of engine knock frequencies providing accurate engine condition to the ECM for optimal ignition timing.

What would cause my knock sensor code?

Code P0325 means that your car computer detects a problem with the knock sensor unit or its circuit. The knock sensor detects the vibrations from abnormal combustion, known as spark knock. A car can have one or two knock sensors depending on its make and model.

How much is a knock sensor for a Nissan Altima?

The average cost for a Nissan Altima knock sensor replacement is between $426 and $491. Labor costs are estimated between $97 and $123 while parts are priced between $329 and $369.

What happens when the knock sensor is damaged?

Pinging Noise From the Engine If the knock sensor fails, the PCM may not recognize or correct spark knock. As a result, you may hear a metallic pinging noise from the engine. The noise is often most noticeable when the engine is under a heavy load.

How much does a knock sensor cost?

Knock Sensor Replacement Cost For an average vehicle, the cost of replacing your knock sensor at a shop is anywhere from $120-$500. This is comprised of parts that will generally cost between $65 and $200, and the labor, which will range between $55 and $300.

Is knock sensor code serious?

P0325 is generally not a serious code and should be able to be driven without issue to a safe location once the malfunction occurs. Some vehicles may experience a slight lack of engine power as the ECU will retard timing to prevent damage in case the engine was knocking.

How much does it cost to fix a knock sensor?

If you have a standard economy vehicle, you can expect to pay anywhere from $120 to $500 for replacing your knock sensor. The parts cost will be anywhere from $65 to $200, while the labor costs will be anywhere from $50 to $350. In most cases, the parts costs and labor costs will be about the same.