Knock Sensor 1 Circuit Low Input
The engine computer is not getting a normal signal from the knock sensor. This can happen if the sensor is faulty, the wiring is damaged, or the connector has a bad connection. It may cause poor engine performance and can lead to engine damage if knock is not detected correctly.
You can usually drive short distances, but the problem should be diagnosed soon. If the engine is actually knocking and the sensor is not reporting it, continued driving can damage the engine.
P0327 means the powertrain control module has detected a low-voltage or weak signal from Knock Sensor 1 on Bank 1, or from the only knock sensor on a single-sensor engine. The sensor signal is below the expected range, so the PCM may not be able to properly monitor engine knock and may alter ignition timing as a protective measure.
It means the engine computer is seeing a signal from the knock sensor that is lower than expected.
Yes. The computer may reduce ignition timing to protect the engine, which can lower power and fuel economy.
It is a moderate problem. It should be fixed soon because the engine may not be protected correctly from knock.
Bad or low-octane fuel can contribute to knock-related issues, but the code usually points to a sensor, wiring, or connection problem.
No. The code will usually return if the sensor, wiring, or engine problem is still present.