One problem related to fuel delivery has been reported for the 2004 Nissan Sentra. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Nissan Sentra based on all problems reported for the 2004 Sentra.
2004 Nissan Sentra 1. Purchased new on 3/13/2004. Mileage 2060 - jersey city, service engine soon light came on, brought to dealer, ecm reprogrammed, dealer did not know what caused the light to come on. Erratic/rough idling still persists, vehicle shut off once while refueling. Mileage, approx. 4725 - jersey city, service engine soon light came on and went off intermittently, dealer refused to repair due to "no hard code is stored. " erratic/rough idling persists. Vehicle shut off second time while parked. Began lemon law proceedings in new jersey. Mileage, 5370 - myrtle beach, service engine soon light is on. Car is bucking in 1st gear (automatic), "mapp" gas or rotten egg smell (possibly excess sulfur) coming from exhaust. Error code p0171/p0174, air flow meter replaced with no further failures. Mileage, 5637 - charlotte, service engine soon light is on. Vehicle now bucks at high speeds, especially when letting up on the accelerator. After prolonged highway driving, very erratic idle, at times almost reaching 0 rpms while parked. Dealer reset ecm, could not detect any failures. Arranged to change fuel pump but finally fuel pump was not changed. Vehicle driven back to new jersey with same failures as listed above. Since charlotte, nc service engine soon light has come on two times, and has gone away just as fast. I do not have much time to keep my only car (and new car) in and out of the dealership, since they refuse to provide a rental. My recommendation: want to stay alive, stay away from Nissan cars and trucks.