Questions & Answers for: Ford Expedition 02 sensor

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Is it normal for your 98 expediiton to make sounds?.... P0133 is a 02 sensor circuit slow response bank 1 sensor 1 .which means you need a new 02 sensor in bank 1 and it is the closest to the engine

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Question about 2003 Expedition

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02 ozygen sensor signal stuck lean Bank1 Sensor 1 2197- 02 ozygen sensor signal stuck lean Bank 2 Sensor 1 The 2 front 02 sensors are located on the front of the exhaust manifold. Should solve problem

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...02 sensor is not functioning the onboard computer does not have the info needed to keep the fuel mixture regulated. It can be too lean or too rich at idle(usually too rich) This can cause the engine ...

Question about 1999 Expedition

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...acting up, may need replacement. If it's 4.6L, that's driver side of engine. P0174------ system too lean bank 2 the upper 02 sensor is bad on bank 2, or the mass air flow sensor could use a

...after changing O2 sensor. Try to remove positive baterry terminal for 20 minutes and install it nack. That will reset your ECU and it will run little rought tilll learn new change in 02

Question about 2004 Expedition

1 Answer

...but it read as bank 1 reading lean... that was last night. tonight is when the surging started... Any ideas? code p0171 means right fuel trim is lean the 02 sensor or map sensor can be at fault ...

...2 sensor 1 on a 2001 ford expedition eddie bauer You will be told that it is passenger side 02 sensor before the cat,, but it is not .. Drivers side right after the manifold is the one you are

Question about 1999 Expedition

1 Answer

...sensor 2 3) P1131 fuel/air mixture 4) P1151 5) P0171 lean I ran the vehicle for 3 days before I had it checked. If the O2 sensors are bad they would trigger the other ones. Should I replace the (2) ...

Question about 1999 Expedition

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told me under the hood on top of the engine to the back of the car Oxygen sensor is in the exhaust (depending on year & engine there is multiple 02 sensors) And injectors, there are 1 per cylinder

...02 sensor witch 02 is it there are 2 on upper exhaust 2 after cat converter code p133 witch o2 sensor is this one Bank #1 Sensor #1  that is the pass sidefront sensor in the converter ...

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