Trouble code P1193 means:Inlet air temp sensor voltage high Try replacing the sensor to fix error
P1193 Inlet Air Temp. Circuit High Test/replace the temp sensor on the air cleaner assy.
P1193 Inlet Air Temp. Circuit High Test/replace the temp sensor
Trouble code P0742 means: Torque Converter Clutch Solenoid Circuit Stuck On
1684 The battery has been disconnected within the last 50 starts
Trouble code P1684 means:The battery has been disconnected within the last 50 starts
Trouble code P0572 means: Brake Switch A Circuit Low
Trouble code P1388 means:Auto shut down ASD relay control circuit
Trouble code P0627 means: Fuel Pump Control Circuit / Open
The Downstream O2 sensor is faulty and needs to be replaced.
According to my handbook that came with my fault code reader, the P0325 fault code indicates a problem with the knock sensor.
Cylinder #4 misfire. see related questions below.