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I'm OBDII getting the following codes on my 2005 Nissan Titan:
P1148 Closed Loop, Bank 1
P1276 Air/Fuel Ratio Sensor 1
Can anyone tell me what I should check - and where the possibly bad components are located? I did a bit of research and it looks like I can access the O2 sensors and air/fuel from underneath the truck. Can I do this without doing anything major - like having to remove the cat?
Also, any chance that the problems might be covered by "Emission Long Term Defect" portion of the warranty? I'm already past the 36 month/36,000 mile general warranty.
Federal Emissions Warranty
The Federal Emissions Warranty guidelines are based on federal regulations and apply to vehicles in all 50 states. Vehicles are covered by two types of emissions control system warranty, "Emission Defect Warranty" and "Emissions Performance Warranty".
Depending on the state you live in, the Performance Warranty is for 3 years/50,000 miles. The Defect Warranty is generally consistent with the manufacturer's bumper-to-bumper warranty with certain parts (catalytic converter and electronic emissions controls (PCM) for up to 8 years/80,000 miles. Please refer to your owner's manual for your exact emissions warranty.
I think it has something to do with the federal emissions warranty.
Design and Defect Warranty Coverage for 1995 and newer light-duty
* Emission control and emission related parts are covered for the
first 2 years or 24,000 miles of vehicle use; and
* Specified major emission control components are covered for the
first 8 years or 80,000 miles of vehicle use.
Major Emission Control Components?
There are three specified major emission control components,
covered for the first 8 years or 80,000 miles of vehicle use on 1995
and newer vehicles:
* Catalytic converters.
* The electronic emissions control unit or computer (ECU).
* The onboard emissions diagnostic device or computer (OBD)
Did some research this is what I found
|p1148 , p1276 , titan|
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