P0327 – Knock Sensor 1 Circuit low Input (Bank 1 or Single Sensor)
The P0327 trouble code is an indication that the knock sensor on bank 1 has lower output voltage than normal; usually .5V or less.
OBD2 Codes
Get detailed guides to the definition, meaning, symptoms, causes, diagnosis and how to fix OBD2 codes.
P0320 – Ignition/Distributor Engine Speed Input Circuit Malfunction
The P0320 code is triggered when there’s an electrical circuit fault in either the crankshaft position (CKP) sensor or camshaft position (CMP) sensor.
P0193 – Fuel Rail Pressure Sensor Circuit High Input
The P0193 trouble code indicates that the PCM has detected that the pressure of fuel is not within the range that’s predetermined by the car manufacturer.
P0175 – System Too Rich (Bank 2)
The P0175 trouble code is triggered when there’s a rich condition in bank 2; i.e. there’s too little oxygen in the exhaust.
P0157 – O2 Sensor Circuit Low Voltage (Bank 2 Sensor 2)
The P0157 happens when the ECM has determined that there’s a low voltage condition in bank 2 sensor 2; i.e. O2 sensor voltage remained too low for too long.