Po 141 02 sensor heater fault (bank 1 sensor 2)
OK, you have 2 Oxygen sensors on your vehicle. They are both mounted on your exhaust. You have one in front of the catalytic converter(Bank 1 - Sensor 1) / Then you have another after the catalytic converter (Bank 1 Sensor 2). Make sure they give you the correct Oxygen sensor at the parts store because they are different. Napa Part # DEN 2344701 for the DENSO one that is after the catalytic converter. You will see it sticking out of the exhaust pipe right after the catalytic converter - with wires and a plug. When you replace it, make sure you don't drop the new one, or get ANYTHING on the sensor Tip - there will be some anti-seize on the threads, make sure you don't wipe that off or get it on the sensor tip. You will need to have a 22mm wrench, or a 7/8 wrench which is a tad loose but works if you use it right - and they even make a deep socket with a slot in it for the wires just for Oxygen Sensors - I rarely use mine, because there never seems to be enough room for that socket. To loosen, bump the end of the wrench with your palm(wearing gloves) - or if you have a rubber hammer, you can tap the end of the wrench to loosen it. Applying steady pressure can cause issues, from rounding the edges of the bolt, to busting a knuckle - "bumping it" prevents all of that.
When you install the new one, be sure not to over tighten, snug will work great.
** Be sure to support your vehicle with properly rated jack stands, parking brake on, vehicle in park, and chock one tire - never rely on a hydraulic jack, or any jack for that matter.
If you need anything else, let me know.
Take care
1/28/2012 12:17:14 PM •
Nissan Quest...
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Answered
on Jan 28, 2012
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