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How to change the O2 sensor? Is it complicated?

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No it's not hard but you need an 02 wrench and it cost 8 bucks, disconnect the wire harness and put the socket on and unscrew it and install the new one, there are two normally and you need to know if it's #1 or #2 if you have 3 you need to know if it's bank one or bank two or the rear 02 sensor that is after the cat but they all look the same.

Posted on Jun 17, 2009

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Where is the o2 sensor located on a 1999 dodge ram

Posted on Jul 16, 2009

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1998 ford 5.4 o2 sensor 2 scan tool readings only 30 and no fluctuation. What do I look for?


Try changing o2 sensor Should be between .100 and .900 volt and very quick changing. if defective ecu give him a fix prevalue.His it a one,two or four wire o2 sensor if it is four it is a HTO2 (heated o2 sensor must have 12 volt ign on too)

May 04, 2014 | 1998 Ford Expedition

1 Answer

Hi there am working on durangospork jeep 2002 the code i fine is p0058 plaese tell me what to do


HO2S heater circuit high, bank2, sensor2. Can be several things leading to the O2 sensor, the wiring to it or the sensor itself.

Some O2 sensors have a built-in heating element which is suppose to get the O2 sensor working more quickly than by waiting for the engine to warm up. The heating element can be overheating or the backfeed on the wire leading to the O2 sensor can be grounding on a bare spot.

You may need a special socket for installing the sensor. You could try replacing the sensor and hope for having good wiring. You will probably need to clear the computer if it does not self-correct.

This is not a complicated repair, but working underneath the car would be better on a hoist. Price the repair knowing what Code 0058 means.
You can ask how much to work on your car AND $ parts would be.

They give a labor rate for replacing the sensor and putting the car on the hoist. Not sure for Jeep, but I would think 1/2 hour to 1 hour.

Please rate my info. Also you will need to know which pipe this is attached to if doing it yourself. Parts clerks may have diagram for you.

Please rate my info.

Nov 16, 2012 | Cars & Trucks

1 Answer

1987 CHEVY IROC Z28 350 TPI- RUNNING RICH, LOTS OF CARBON BUILT UP ON THE INTAKE, BAD FUEL MILAGE


I'd be looking for a few things there. First, make sure that the temperature sender is working. If not, the computer thinks the engine is always cold so it sends more fuel even though it's not needed. Next, make sure that there aren't any exhaust leaks ahead of the O2 sensor. That will cause the sensor to think that the actual mixture is lean, again asking for more fuel. Also check that the O2 sensor is good. Out of range can do the same thing. There are other more complicated causes but those are the most common.

Jul 19, 2011 | 1987 Chevrolet Camaro

1 Answer

This code keeps coming up we changed the o2 sensor and put new plugs and wires on. The truck is hesitating and seems to lose power going up hills and is now smoking. It is a 2004 chevy avalanche.


This could be due to the wrong O2 sensor, Bad Catalytic Convertor, EGR valve or something along those lines. Did you replace this with an OEM part and not have to change the wiring harness or did you have to change the wirings? The other most common issue is you changed it with a non-OEM product and the O2 sensor is not reading correctly. Check to make sure wires are hooked up correctly. Also not know the details of this vehicle it can be that you changed the wrong O2 sensor also, most vehicles have an O2 sensor before and after the Catalytic Convertor

May 19, 2011 | Chevrolet Chevy Cars & Trucks

1 Answer

O2 light stays on


You're lucky you have an O2 sensor light, which most cars do not have.
---
Did you change both O2 sensors?

Jul 11, 2010 | 1992 Isuzu Trooper

2 Answers

1996 grand cherokee starts fine and runs great the first 5 minutes. Then it runs like ****..doesn't completely stall but runs really rough. Like it wants to stall but doesn't. Replaced the fuel pump and...


First thing is; When you changed the fuel pump, did you compare the 2 to see if they were identicle?, because it's possible that you could have the wrong fuel pump.. Second; you should have changed the fuel filter when you changed the pump, if not? you need to put a new fuel filter on... Third... It is possible for the upper o2 sensor, because on your Jeep, you have an OBD II system, which is, ( On Board Diagnostics II) and that system uses two "o2" sensors; One before the catalytic converter and one after the converter. The Primary o2 sensor is the one before the converter; The secondary o2 sensor, or catalyst monitor, is located after the catalytic converter.
The two o2 sensors work on an "open loop and closed loop". When the motor is cold, the o2 sensors are in open loop, which means they are not being used to monitor the exhaust gas, and when the motor warms up- after 5 minutes or so, then the computer switches to "Closed loop" and the o2 sensors are then used to monitor the exhaust gasses, so it is possible that your primary o2 sensor, or the one before the catalytic converter is bad.... But! It's very rare for both o2 sensors to go out at the same time.... I hope that answers your question & gives you an idea of how the o2 sensors work in conjunction with the fuel injection system.

Apr 29, 2010 | 1996 Jeep Grand Cherokee

1 Answer

The 02 sensor is not working


there are 4 o2 sensors. one on each bank after the cat. converters, one before the muffler and one on the muffler.

chances are it one of the o2 sensors by the cat converters.

check you Mass Air Sensor and replace spark plugs, because there is probably something simple that wrecked your o2 sensor in the first place and it will help your vehicle run and last longer. It could be more complicated, like a vacuum leak cuz honda civics are known to have head gaskets replaced.

But i guess first you need to figure out which o2 sensor it is.

Apr 12, 2010 | 1997 Honda Civic

1 Answer

Engine light stays on after changing 02 sensor on my 2000 toyota tundra code read o2 sensor


did u change the right o2 sensor there is 2 sensors on bank1 and 2 on bank2.....upstream and down stream.....i had the same prob i changed the o2 senser to the other side to check and make sure it was the o2 senser....it took 4 o2 sensors before i got 1 that finally worked nd yes i was buying them brand new.....so change sides with it nd see if the code changes sides....and did u reset it with the code machine when u put the new 1 in?

Mar 28, 2010 | 2000 Toyota Tundra

2 Answers

Autozone diag: Check eng light o2 sensor - is this a do it yourself job?


its not hard to change the o2 sensors but if they are baked in which means really hard to break loose u could have problems try spraying them down with p.b blaster and getting them out

Jun 15, 2008 | 1998 Toyota Avalon

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