P1147

A forum for the legendary Nissan Pathfinder and Infiniti QX4.
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soccer882005
Posts: 5
Joined: Tue Jan 08, 2013 5:48 pm
Car: QX4

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HI,

I had P1147 error code about a year ago. I bought two NEW DELPHI 4W OXYGEN SENSORs and replaced the two downstream sensors. It was fine until a month ago.
I wonder if anyone has the same experience. Should I use Bosch parts to replace again?

Thanks,

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soccer882005
Posts: 5
Joined: Tue Jan 08, 2013 5:48 pm
Car: QX4

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Forget to mention two ELPHI 4W OXYGEN SENSORs were bought on Ebay.
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Towncivilian
Posts: 4868
Joined: Sun May 23, 2010 10:21 am
Car: 2001.5 Nissan Pathfinder SE 3.5L 2WD A/T
2007 Nissan Altima 2.5L CVT
2012 Nissan Sentra 2.0L CVT Special
2012 Infiniti G37 Sedan 7A/T
Location: Florida, USA
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Which year QX4?

Bosch is the original manufacturer of the oxygen sensors. However, P1147 is not at all related to the oxygen sensors, why did you replace them?

A possible cause of your P1147 code could be a clogged vacuum hose around the EVAP canister.
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soccer882005
Posts: 5
Joined: Tue Jan 08, 2013 5:48 pm
Car: QX4

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Thanks, I will check the EVAP
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