Possible Causes
WARNING: This page is about a different car, the 2002 Nissan Maxima and 2002 Infiniti I35. However, it is still accessible from the selected car via links, so may be relevant.
Malfunction is detected when a rationally incorrect voltage from FTT sensor is sent to ECM, compared with voltage signals from engine coolant temperature sensor and intake air temperature sensor. Possible causes are:
- FTT sensor circuit open or shorted.
- Defective FTT sensor.