How do you fix code p1320 on infinity qx4?

Code P1320 on an Infiniti QX4 typically indicates an issue with the ignition timing or the crankshaft position sensor. To fix it, you should first check the crankshaft position sensor and its wiring for any damage or disconnections. If the sensor is faulty, replace it. Additionally, inspect the ignition timing and ensure it is correctly set; adjustments may be necessary. If the code persists after these checks, consult a professional mechanic for further diagnostics.