Applications: 2001-2004 Toyota Tacoma 2.4L 2000-2004 Toyota Tacoma 2.7L 2000-2004 Toyota Tacoma 3.4L ? Package Included: 2 * Oxygen Sensor Q & A: What happens if you drive with a bad oxygen sensor? A bad oxygen sensor could cause sluggish and rough driving with stalls, along with poor fuel efficiency and high pollution. What happens if you don't replace a bad oxygen sensor? The engine computer won't be able to correctly set the air-fuel ratio, which could result in lower fuel economy, higher emissions and damage to other components. Signs Of A Bad Oxygen Sensor: .
