What P0327 means
Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor)
Common causes (general)
Before spending money on parts, verify the code with a scan tool and read freeze frame data. Freeze frame captures every sensor value at the moment the code set — this is often enough to figure out the root cause without further testing.
Manufacturer-specific descriptions
Different manufacturers use this code for slightly different failure modes. Here's what your specific make means by P0327:
| BMW | Knock Sensor 1 Circuit Low |
| FORD | Knock Sensor 1 Circuit Low Input |
| MITSUBISHI | Knock Sensor 1 Circuit low Input (Bank 1 or Single Sensor) |
| NISSAN | Knock Sensor 1 Circuit low Input (Bank 1 or Single Sensor) |
| VOLKSWAGEN | Knock Sensor Circuit Low Voltage |
Read this code on your own car
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