What is the function of the air fuel ratio sensor?
The air fuel ratio sensor is typically in the exhaust manifold or in the front exhaust pipe. It measures the oxygen in the exhaust and sends that information to the ECU. The ECU, based on the air-to-fuel ratio, adjusts the blend to keep it at the prime level. This level is generally 14.7:1.
How many oxygen sensors does a 2005 Nissan Altima have?
Oxygen sensors are located before and after the catalytic converter. A vehicle may have two to five oxygen sensors, and sometimes even more.
Is air fuel sensor same as oxygen sensor?
An air/fuel sensor can read a much wider and leaner range of fuel mixtures than a conventional O2 sensor. That’s why they’re also called “wideband” O2 sensors. An A/F sensor, by comparison, produces a changing current signal that varies in direct proportion to the amount of unburned oxygen in the exhaust.
How much is an o2 sensor for a Nissan Altima?
Nissan Altima Oxygen Sensor Replacement Cost Estimate. Labor costs are estimated between $36 and $45 while parts are priced between $281 and $309. This range is based on the number and age of Nissan Altima’s on the road.
What does error code P1273 mean?
Error Code P1273 is described as Air Fuel Ratio Sensor 1 Bank 1 Lean Shift Monitoring. This refers to a lean condition due to too much oxygen, usually caused by a vacuum leak, fuel pressure, dirty MAF (Mass Airflow sensor), or defective or dirty injectors.
What does the P1273 Nissan air fuel ratio sensor do?
P1273 Nissan Description The Air Fuel Ratio (A/F) sensor is a planar dual-cell limit current sensor. The sensor element of the A/F sensor is the combination of a Nernst concentration cell (sensor cell) with an oxygen-pump cell, which transports ions. It has a heater in the element.
How much does it cost to diagnose a Nissan P1273 code?
The cost to diagnose the P1273 NISSAN code is 1.0 hour of labor. The auto repair’s diagnosis time and labor rates vary by location, vehicle’s make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour. | When is the code detected?