P1273 2005 NISSAN ALTIMA SEDAN Code - Air Fuel Ratio Sensor 1 Bank 1 Lean Shift Monitoring
|P1273 2005 NISSAN ALTIMA SEDAN code possible causes
- Faulty Air fuel ratio (A/F) Sensor 1 Bank 1
- Air fuel ratio (A/F) Sensor 1 Bank 1 harness is open or shorted
- Air fuel ratio (A/F) Sensor 1 Bank 1 circuit poor electrical connection
- Fuel pressure
- Faulty Fuel injector
- Faulty Air Flow Meter
|How do I fix the P1273 2005 NISSAN ALTIMA SEDAN code?Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.
|P1273 2005 NISSAN ALTIMA SEDAN code tech notesIf one or more sensors are replaced the Engine Control Module (ECM) Mixture Ratio Self-Learning clearing procedure must be performed.
Altima ECM Self-Learning procedure
There is a factory service bulletin for the 2005 Nissan Altima:
2005 Nissan Altima Factory Service Bulletin OBDII Code P1273
User Submitted Video
|Cost of diagnosing the P1273 2005 NISSAN ALTIMA SEDAN code
Labor: 1.0The cost of diagnosing the P1273 2005 NISSAN ALTIMA SEDAN 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 P1273 2005 NISSAN ALTIMA SEDAN code detected?The A/F signal computed by ECM from the A/F sensor 1 signal is shifted to the lean side for a specified period.
|What are P1273 2005 NISSAN ALTIMA SEDAN code possible symptoms?
- Engine Light ON (or Service Engine Soon Warning Light)
- Possible rough engine idle
|P1273 2005 NISSAN ALTIMA SEDAN code descriptionThe 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.
The sensor is capable of precise measurement λ= 1, but also in the lean and rich range. Together with its control electronics, the sensor outputs a clear, continuous signal throughout a wide λ range (0.7 < λ < air).
The exhaust gas components diffuse through the diffusion gap at the electrode of the oxygen pump and Nernst concentration cell, where they are brought to thermodynamic balance.
An electronic circuit controls the pump current through the oxygen-pump cell so that the composition of the exhaust gas in the diffusion gap remains constant at λ = 1. Therefore, the A/F sensor is able to indicate air/fuel ratio by this pumping of current. In addition, a heater is integrated in the sensor to ensure the required operating temperature of 700 - 800 C (1,292 - 1,472 F).
|Need more information with the P1273 2005 NISSAN ALTIMA SEDAN code?Need more information on how to fix the P1273 2005 NISSAN ALTIMA SEDAN code? Get Access to Factory Service Manuals
|Need help with a P1273 2005 NISSAN ALTIMA SEDAN code?Get the P1273 2005 Nissan Altima Sedan code diagnosed by a professional: Find a repair shop in your area
|P1273 2005 NISSAN ALTIMA SEDAN code commentsHelp us improve AutoCodes.com. Leave a comment below or tell us if the information above helps you fix the code. What are the symptoms on your vehicle for the P1273 2005 Nissan Altima Sedan code? Have you replaced any parts?
Any information is appreciated. Thanks