Question about 2002 Chevrolet Venture Passanger

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I have a misfire in cylinder 1 and were is the o2 sensor for bank 1

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Okay starting with the o2, bank 1 is the side 31 cylinder is, bank 2 is the other side that cylinder 2 is, your misfire could be a coil or sparkplug wire or sparkplug,if its been a while sence a tuneup then i would tune it up and go from there,on your car bank 1 rear the rear sensor on the top of the rear exhaust manifold but be careful it could say bank 1 sensor 2 which means the rear manifold but the second sensor down, the top one one on the manifold would be bank 1 sensor 1, as to front that front one on the front pipe would be bank 2 sensor 1. hope this helps here a diagram to help you.i have a misfire in cylinder 1 and were is the o2 - 4ead693.gif

Posted on Sep 07, 2010

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ENGINE LIGHT ON CODES P0141 & P0144


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two completely different operations
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Long blinks Short blinks Problem
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2 Answers

I have research around and found that the Bank 1 sensor 3 O2 sensor is post Cat. But when I got under there I dont see anything that could resemble a sensor. Where is it. Please help. Marc


try this
ALLDATA Editor's Note: Always verify #1 cylinder location prior to diagnosis and repair.

- Cylinder bank number one is the bank that contains number one cylinder.


See: Firing Order


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Cylinder #1 on left side.

printer.png View & Print Options 29_fm96hmob2_006a-159z.png&width=469&height=193&displaytype=display&imgrotation=&links=
Cylinder #1 on right side.

- The first oxygen sensor in cylinder bank # 1 is numbered O2 Sensor 1/1.
- The second oxygen sensor in cylinder bank # 1 is numbered O2 Sensor 1/2.
- A third oxygen sensor in cylinder bank # 1 would be numbered O2 Sensor 1/3.
- The first oxygen sensor in cylinder bank # 2 is numbered O2 Sensor 2/1.
- The second oxygen sensor in cylinder bank # 2 is numbered O2 Sensor 1/1.



- If a V-6 or V-8 vehicle only uses one downstream Heated Oxygen Sensor (HO2S) it is numbered O2 Sensor 1/2, even if it uses two upstream HO2S.
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1 Answer

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1 Answer

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