One problem related to o2 sensor has been reported for the 2002 Nissan Sentra. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2002 Nissan Sentra based on all problems reported for the 2002 Sentra.
The contact owns a 2002 Nissan Sentra. While driving 40 mph, the check engine light illuminated. The vehicle was taken to an independent mechanic who stated that the 02 sensor needed to be replaced. The repairs were made, but the failure recurred. The dealer stated that the ecm needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was 62,955.