Question about 1998 Ford Explorer

2 Answers

I get a DTC P0133 code on my 1998 Ford Explorer V8

I replaced the O2 Sensor Bank 1 Sensor 1 and still get the same DTC code.
The Freeze Frame Data reads:

Fuel System 1
Closed Loop

Calculated Load
43.5%

Engine Coolant Temperature
199 Deg F

STFT Bank 1
-4.6%
Lift Bank 1
-3.1%
STFT Bank 2
-3.9%
Lift Bank 2
-3.9%

Engine 1934 RPM
Vehicle speed 64 MPH

Can you give me an idea of what may still be wrong with it?

Posted by on

  • 9 more comments 
  • amaldo67 Jan 13, 2009

    The engine light is on. This is the only DTC displayed. The vehicle is running fine. The vehicle will not pass NJ inspection.

    Thank you for your response.

  • amaldo67 Jan 13, 2009

    I am using an Innova 3120 Scanner. I do not have graphs or understand how to read them. I recently purchased this vehicle. It may need a tune-up. Can this be the problem?

  • amaldo67 Jan 14, 2009

    Two drive cycles were performed with the new sensor. The dash light went out when cleared and turned on after the drive cycle. I do not believe it is the old or new O2 sensor. I believe something else is causing it.

  • amaldo67 Jan 20, 2009

    The problem turned out to be the EGR tube connecting to the exhaust manifold. A crack in the metal tube was causing the error. Thank you for your help.

  • elranchero_1 Feb 27, 2009

    i have the some problem on my 1998 ford expedition code p0133 what is the commun problem ot than

  • yadayada
    yadayada May 11, 2010

    I need a graph of the sensor performance, these figures yeild little useful info, I am a Ford master electronics tech.

  • grandpasteve May 11, 2010

    is that the only code to come up the p0133 is a slow response from the 02 sensor it does not mean it is bad , what esle if anything is it doing..

  • Anonymous Mar 14, 2014

    P1349 code changed ocv bank 1 and month later back on car shaking and misfiring and Idea what wrong ?

  • Anonymous Mar 17, 2014

    where is bank 1 sensor 1 on a 1998 saturn 1.9 engine

  • Anonymous Mar 21, 2014

    When it gets to 45 Mph t doesn't like to shift also it takes me about 5 times to turn the key before my car will turn on

  • Anonymous Mar 25, 2014

    replace the part

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  • Ford Master
  • 61,168 Answers

It may be a defective O2 sensor here is th difinition:
P0133 - Heated Oxygen Sensor (HO2S) Slow Response Bank 1 Sensor 1 , this is the sensor on the side of the engine that #1 cylinder is on, it is the sensor before the cat.

Posted on Jan 14, 2009

  • yadayada
    yadayada Jan 20, 2009

    I was wondering is a TFT rating fair, this was a one in a 1000 problem, as a Ford tech never saw it once, so i gave advice based on that experience and repair background. One note we are not employed by Fixya, just tech's trying to help, glad u found the problem, will make a note of it.

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  • Contributor
  • 14 Answers

Can you take back the sensor for a new one or test to see if the sensor is getting proper voltage , did you try and clear the code.. it should at least turn off for few minutes unless the voltage to the sensor is incorrect ... will look into some other causes,, and get back with you

Posted on Jan 14, 2009

  • grandpasteve Jan 14, 2009

    try diving the car on the hiway for 30 plus minutes , it could be carbon coated parts causing the light to come back on try putting some fuel cleaner and running that thru and check your codes after driving on the hiway or any long trip , i know it is hard to fix something when you cant see it but if you need anymore help just ask

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1 Answer

Throwing 1 code po133, pending code po171


Nice info but what's your question ? You have a Oxygen Sensor Circuit Slow Response (Bank1, Sensor1) code P0133 , an you have P0171 System Too Lean (Bank 1) ! You have a bad O2 sensor , vacuum leak , Test O2 Sensor mov

Sep 02, 2015 | Cars & Trucks

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Which part will work to replace the oxygen sensor on a ford windstar 1998 3.0L if the fault code is P0133 o2, bank 1 sensor 1?


Call any auto store and they will tell you the part number, price and availability. Keep in mind that trouble codes can have other causes - for example if the connection is corroded or dirty or the wire is damaged all will result in the bad O2 sensor code. Good luck.

May 05, 2015 | Ford Cars & Trucks

1 Answer

I HAVE A1996 FORD EXPLORER WITH CODES PO133:02,PO155:02P1115


DTC P0133 - Oxygen Sensor Circuit Slow Response (Bank1, Sensor1)
This involves the front oxygen sensor on Bank 1. This code indicates the engine air fuel ratio is not being adjusted by the oxygen sensor signal or the ECM as expected to do so, or not adjusted as often as expected to do so once the engine is warmed or under normal engine use. You will likely not notice any drivability problems, although there may be symptoms.

A code P0133 may mean that one or more of the following has happened:
The oxygen sensor is faulty
The wiring to the sensor is broken / frayed
There is an exhaust leak


DTC P0155 - 02 Sensor Heater Circuit Malfunction (Bank 2 Sensor 1)
This code refers to the front oxygen sensor on Bank 2. The heated circuit in the oxygen sensor decreases time needed to enter closed loop. As the O2 heater reaches operating temperature, the oxygen sensor responds by switching according to oxygen content of the exhaust surrounding it. The ECM tracks how long it takes for the oxygen sensor to begin switching. It the ECM determines (based on coolant temp) that too much time elapsed before the oxygen sensor began operating properly, it will set P0155. See also: P0135 (Bank 1). You will likely notice poor fuel economy the illumination of the MIL.

A code P0155 may mean that one or more of the following has happened:
O2 Heater element resistance is high
Internal short or open in the heater element
O2 heater circuit wiring high resistance
open or short to ground in the wiring harness


DTC P0306 - Cylinder #6 Misfire Detected
A P0306 code means that the the car's computer has detected that one of the engine's cylinders is not firing properly. In this case it's cylinder #6. Symptoms may include the engine may be harder to start, the engine may stumble / stumble, and/or hesitate or other symptoms may also be present.

A code P0306 may mean that one or more of the following has happened:
Faulty spark plug or wire
Faulty coil (pack)
Faulty oxygen sensor(s)
Faulty fuel injector
Burned exhaust valve
Faulty catalytic converter(s)
Running out of fuel
Poor compression
Defective computer


DTC P1115 - Intake Air Temperature 2 Circuit High Input (Super/Turbo Charged engines)


In the next diagram could checl this specific location about each O2 sensor...

zjlimited_8.jpeg


Hope this helps.

Oct 05, 2011 | 1996 Ford Explorer

1 Answer

I have a1996 ford explore with this codes p0133:02,po155:02,p1115andpo0306


DTC P0133 - Oxygen Sensor Circuit Slow Response (Bank1, Sensor1)
This involves the front oxygen sensor on Bank 1. This code indicates the engine air fuel ratio is not being adjusted by the oxygen sensor signal or the ECM as expected to do so, or not adjusted as often as expected to do so once the engine is warmed or under normal engine use. You will likely not notice any drivability problems, although there may be symptoms.

A code P0133 may mean that one or more of the following has happened:
The oxygen sensor is faulty
The wiring to the sensor is broken / frayed
There is an exhaust leak


DTC P0155 - 02 Sensor Heater Circuit Malfunction (Bank 2 Sensor 1)
This code refers to the front oxygen sensor on Bank 2. The heated circuit in the oxygen sensor decreases time needed to enter closed loop. As the O2 heater reaches operating temperature, the oxygen sensor responds by switching according to oxygen content of the exhaust surrounding it. The ECM tracks how long it takes for the oxygen sensor to begin switching. It the ECM determines (based on coolant temp) that too much time elapsed before the oxygen sensor began operating properly, it will set P0155. See also: P0135 (Bank 1). You will likely notice poor fuel economy the illumination of the MIL.

A code P0155 may mean that one or more of the following has happened:
O2 Heater element resistance is high
Internal short or open in the heater element
O2 heater circuit wiring high resistance
open or short to ground in the wiring harness


DTC P0306 - Cylinder #6 Misfire Detected
A P0306 code means that the the car's computer has detected that one of the engine's cylinders is not firing properly. In this case it's cylinder #6. Symptoms may include the engine may be harder to start, the engine may stumble / stumble, and/or hesitate or other symptoms may also be present.

A code P0306 may mean that one or more of the following has happened:
Faulty spark plug or wire
Faulty coil (pack)
Faulty oxygen sensor(s)
Faulty fuel injector
Burned exhaust valve
Faulty catalytic converter(s)
Running out of fuel
Poor compression
Defective computer


DTC P1115 - Intake Air Temperature 2 Circuit High Input (Super/Turbo Charged engines)


In the next diagram could checl this specific location about each O2 sensor...

zjlimited_7.jpeg


Hope this helps.

Oct 05, 2011 | 1996 Ford Explorer

2 Answers

I have a 2000 ford explorer 4.0 v6 ohv and i have an bank 1 sensor 1 code. which o2 sensor is that?


Ford Explorer and V8 O2 Sensor Locations diagram. This shows the location of Ford oxygen sensors on Bank 1 and Bank 2. If you want to know where your O2 sensors are, this diagram is your guide (click over pic for zoom)...

zjlimited_327.gif


Hope helps with this (remember to rate and comment this answer).

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1 Answer

Where is bank 1 sensor 2 on f150 4.6 Eng. .


Diagram: Ford Explorer and V8 O2 (Oxygen) Sensor Locations

Ford Explorer and V8 O2 Sensor Locations diagram. This shows the location of Ford oxygen sensors on Bank 1 and Bank 2. If you want to know where your O2 sensors are, this diagram is your guide.

zjlimited_192.gif

Hope helps.

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