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So i go to smog the T and of coarse i get a code. its p1273 i looked it up and trying to see whats the best way to fix it. Not too sure if i can do it myself. Any info would be appreciated!
 

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So i go to smog the T and of coarse i get a code. its p1273 i looked it up and trying to see whats the best way to fix it. Not too sure if i can do it myself. Any info would be appreciated!
I think it must have to do with the 2 new recalls on the TSB. I just came back from the dealership today to get them replaced. Should have called you s0 we could roll together.
 

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can i call the dealership tomorrow and ask?
Yeah it doesn't hurt, i already set up another appointment to replace all my seat belts. For some reason I couldn't get the rear diff and front breaks done.
I'm trying to fix as much is covered since I'm going to keep the truck for at least half a decade and they robbed me for a faulty exhaust manifold. Hope this helps out Big "S"


P1273 NISSAN - Air Fuel Ratio (A/F) Sensor 1 Lean Shift Monitoring Bank 1

P1273 NISSAN Description


The 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).


Symptoms

- Engine Light ON (or Service Engine Soon Warning Light)
- Possible rough engine idle
Possible causes
- Air fuel ratio (A/F) sensor 1 Bank 1
- Air fuel ratio (A/F) sensor 1 heater Bank 1
- Fuel pressure
- Fuel injector
- Intake air leaks
- Air Flow Meter
When is the code detected?
The output voltage computed by ECM from the A/F sensor 1 (Bank 1) signal is shifted to the lean side for a specified period.
 

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I'm getting this along with the P1274 code. Is there a fix for this?
 

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Discussion Starter #7
I just reset my trucks computer to turn off the check engine light. Drove it around for 50 miles to reset it for the smog guy..I passed and it never came back on. I know the sensor is going bad but it was a quick fix to pass smog
 
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