Emission Control Problems of Nissan Frontier

2/25/05 I purchased a used Nissan froniter SC '01. One week later the "service engine" light appeared. A Nissan technician diagnosed the problem as the oxygen sensors not providing feedback due to condensation in the wire harnesses. The tech. Told me that there was a bulletin he found stating that the wire harnesses in that year Frontier were found to be faulty and replaced with updated harnesses, which I would have to buy along with four sensors, to fix my problem. The cost in parts was $965 and labor is estimated at $880. Nissan will not even pay for partial parts even though they admit it is faulty product. I have contacted them to complain with the appropriate department and now they will not return my calls.

See all problems of the 2001 Nissan Frontier 🔎.

While driving, specifically in rain storms, vehicle stalled. Took the vehicle to the dealer. Was told that water was being sucked into the air filter from the wheel well. Vehicle would knock and sputter when trying to accelerate. Air filter sucks water from around the wheel area.

See all problems of the 2003 Nissan Frontier 🔎.

While driving at about 70 to 75, under acceleration, I heard a loud noise and then the vehicle's rpms dropped down to about 500 as if the vehicle had no gas. I pulled over and turned the truck off I made sure that there was gas, and started the vehicle again and the check engine light came on. It seemed to run at about the correct rpm so I took it directly to the dealer. They had it for a week, and ultimately said that it was a bad oxygen sensor (the vehicle is supercharged) that caused the problem. I am not too confident in that explanation. God willing, the problem is fixed. The truck was only 3 weeks old at the time of the incident.

See all problems of the 2002 Nissan Frontier 🔎.