Question about Chrysler Pacifica

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I bought a replacement oxygen sensor providing instructions for new part wire color connections. The old and original part bring different color of wires. What should I do?

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Return the Sensor

You want an OEM replacement
that is exactly like your old one

Screw it in Tighten a little
and plug in wire connector

Posted on Mar 16, 2011

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Posted on Jan 02, 2017

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2007 tl type s where is bank 2 sensor 1 oxygen sensor located. What is the replacement number of a sensor to kill Emission p0171 Notice and light


Oxygen sensors monitor the exhaust stream, comparing the oxygen content in it to the oxygen content of ambient air. When oxygen content is low, sensor voltage is high. When oxygen content is high, sensor voltage is low. The voltage created by the sensor is sent to the DME (engine control module) to help maintain a proper fuel mixture. The mixture preparation is used to keep the catalytic converters running at peak efficiency. The oxygen sensors used in E60 models covered in this article has four wires. Two of which are for oxygen sensor heating and two for the signal. The heater is used to get the sensor online faster. Previously, exhaust heat was used. One wire supplied a ground to the sensor for the signal, and the other was for the sensor signal.
Oxygen sensors should be replaced every 100,000 miles. In a perfect world that would be it. Wait until a specified mileage and replace the sensor. However, these sensors fail prematurely, set oxygen sensor fault codes and reduce fuel economy. In this article, I will show you how to identify the location of all four oxygen sensors and how to replace them. You will need an oxygen sensor socket to remove the sensors and remember to always work with a cool exhaust. Oxygen sensors are fragile. Do not drop, as damage may occur. Also, keep the sensor tip clean when reinstalling.
Oxygen sensors are laid out in banks, which refer to cylinders and in sensor numbers referring to before or after the catalytic converter. Bank1 or B1 refers to cylinders 1-3. Bank 2 or B2 refers to cylinders 4-6. Sensor 1 or S1 refers to the sensor before the catalytic converter. Sensor 2 or S2 refers to the sensor after the catalytic converter.
Remember that your car may have been serviced before and parts replaced with different size fasteners used in the replacement. The sizes of the nuts and bolts we give may be different from what you have so be prepared with different size sockets and wrenches.
Protect your eyes, hands and body from fluids, dust and debris while working on your vehicle. If working with the electrical system, disconnect the battery before beginning. Always catch fluids in appropriate containers and properly dispose of any fluid waste. Recycle parts, packaging and fluids when possible. Never work on your vehicle if you feel the task is beyond your ability.
Our vehicle may vary slightly from yours as models do change and evolve as they grow older. If something seems different, let us know and share your info to help other users. Do you have questions or want to add to the article? Leave a comment below. When leaving a comment, please leave your vehicle information.
Figure 1 Bank 1 Sensor 1 is indicated by a yellow arrow. Bank 2 Sensor 1 is pointed out with a green arrow. Large Image ' Extra-Large Image
Figure 2 Bank 1 Sensor 2 has a green arrow. Bank 2 Sensor 2 is shown with a yellow arrow. Large Image ' Extra-Large Image
Figure 3 Replacing sensors before catalytic converter: Oxygen sensors are located in the exhaust manifold. Remove the engine covers. See our tech article on engine covers removing. Locate the oxygen sensor electrical connectors at the right side of the engine above the exhaust manifold. Label or mark the wiring harness to aide during reinstallation. I suggest replacing one sensor at a time so you do not mix up connectors. Using an oxygen sensor socket, loosen the oxygen sensor connection to the exhaust manifold. Do not unscrew yet. Large Image ' Extra-Large Image
Figure 4 Replacing sensors before catalytic converter: Pull the wiring harness out of the mounts (green arrows) along the valve cover. Bank 1 sensor 1 shown, bank 2 sensor 1 is similar. Large Image ' Extra-Large Image
Figure 5 Replacing sensors before catalytic converter: Next, disconnect the electrical connector of the oxygen sensor you are replacing (yellow arrow). First, remove the electrical connector from the mounting bracket (green arrow) by pulling straight up. Once out, disconnect the electrical connector by pressing the release tab and pulling it apart. Note the wiring harness color and the factory sensors color code sensors to help when replacing. Locate the color of the sensor you loosened. Using an oxygen sensor socket, remove the oxygen sensor from the exhaust manifold. Lightly coat the new oxygen sensor thread with anti-seize compound. Install the new oxygen sensor and tighten to 50Nm (37 ft-lb). Then reroute the wiring harness and connect the electrical connector. Repeat if replacing both sensors. Then reassemble the engine covers and clear any engine fault codes using a BMW scan tool. Large Image ' Extra-Large Image
Figure 6 Replacing sensors after catalytic converter: Oxygen sensors are located in the exhaust, behind the catalytic converters. Working below the transmission, remove the transmission splash shield. See our tech article on lower splash shield replacing. Using an oxygen sensor socket, remove the oxygen sensor connection to the exhaust manifold. When reinstalling the sensor, do not allow the harness to remain twisted (green arrow). Be sure it is properly routed and tension free. Large Image ' Extra-Large Image
Figure 7 Replacing sensors after catalytic converter: Next, disconnect the electrical connector of the oxygen sensor you are replacing. First, remove the electrical connector from the mounting bracket (green arrow) by pulling it straight out toward the left side of the engine. Once out, disconnect the electrical connector by pressing the release and pulling it apart (inset). Note the wiring harness color, factory sensors color code sensors to help when replacing. Locate the color of the sensor you loosened. Using an oxygen sensor socket, remove the oxygen sensor from the exhaust manifold. Lightly coat the new oxygen sensor thread with anti-seize compound. Install the new oxygen sensor and tighten it to 50Nm (37 ft-lb). Large Image ' Extra-Large Image
Figure 8 Then reroute the wiring harness and connect the electrical connector. Repeat if replacing both sensors. Then reassemble the engine covers and clear any engine fault codes using a BMW scan tool.

Jan 02, 2018 | Cars & Trucks

1 Answer

Oxygen Sensor 4 wire wiring diagram/instructions


Such are "universal" parts! But what can the vendor do, if their "universal" unit has to substitute for 2-wire, 3-wire, and 4-wire systems, without any modifications?

Apr 22, 2017 | 1998 Chrysler Cirrus

1 Answer

I have a 2005 ford crown victoria P71 ( interceptor). It has cruise but dosent work. I just bought it from the county. It was a active patrol car that was up for replacement (so its in excellent mechanical...


I also have that same vehicle but, I'm sorry to say it does not have cruise. I also have a wiring issue. I replaced the interior (seats, carpet, door panels, and a few dash moldings) with duel power seats, however I through out the old seats before I noted the "wiring colors" for the passenger seat 'seatbelt' and 'airbag' sensor connections. The new seats came out of a 2003 crown vic (not a p71) and had totally different connections under the passenger seat. My '05 p71 did not even have the wires there for a power passenger seat, so I had to replace and wire them in from the harness that I removed from donor car. That actually wasn't TOO bad, and the seats work fine, but I don't know which wires go together for the seatbelt and airbag sensors, as the old wire 'colors' under the seat do not match the 'colors' on the connectors under the new power passenger seat. If you could tell me the colors of the wires to your original seat (passenger), for the seatbelt and airbag plugs you would be a great help in solving my issue with the "airbag" and "seatbelt" light that stays lit on the dash. If I can help with your problem in some way, even though my car does not have cruise, e-mail me and let me know how (ccandrllc@aol.com) .

Dec 18, 2011 | 2005 Ford Crown Victoria

1 Answer

I have a 1992 jeep yj 2.5L I bought. The oxygen sensor wires were cut right off when I bought it. I had to replace the oxygen sensor. the wires on the new sensor are black, grey, and two whites. The wires...


When you bought the replacement sensor it should have included instructions on what color wires match. If possible I would return to the store you bought it from and ask for the included directions.

The blacks go together and the greys go together, but I am not sure which other ones go together without knowing the brand and P/N of the replacement sensor.

Jul 04, 2011 | Jeep Wrangler Cars & Trucks

1 Answer

O2 sensor wire connections.my original o2 sensor adaptor got melted by my exaust,so it was cut off the original wiring harness which had 4 wires which are red/white, orange,grey/white and grey. But the...


Ford Explorer is equipped with two oxygen sensor positioned on the exhaust manifold. Its necessary to replace the oxygen sensor at the first sign of failure. You can get all necessary details about o2 sensor at http://www.wholesalesensors.com/ford-oxygen-sensor/

Jun 23, 2011 | 2003 Ford Explorer

1 Answer

It will be very much appreciated if you could send me the information about how to replace the O2 sensors on a 1998 chrysler sebring convertible.


Hello, Eventually your Chrysler Sebring's oxygen sensor will go bad and need to be replaced. The oxygen sensor regulates the oxygen-to-fuel ratio in your vehicle. It also controls your gas mileage. It senses when more or less oxygen needs to be pumped into the fuel lines. If it fails, your Sebring will run poorly and won't get very good gas mileage. Knowing how to change it yourself can save your money. Here are the instruction to change o2 sensors.
Locate your Sebring's oxygen sensor on the pre-catalytic converter. This is located near the front right wheel well of your vehicle. Apply some anti-seize paste to the threads of the new oxygen sensor. Be careful not to get any of the paste on the sensor itself, or it will be ruined. This makes for easy removal of the sensor next time.Remove the old oxygen sensor, using the 7/8-inch wrench. Find the stock sensor wire near the engine-loop lift. This will be by the firewall of your Chrysler Sebring. Splice the stock sensor wire and connect it to the new oxygen sensor's wire, using crimp connectors.Remove the large air-intake pipe that runs from the air box to the rear turbo. Then remove the two smaller air pipes that run from the air box to the blowoff valves. This will give you access to the oxygen sensor. Soak the old oxygen sensor in WD-40 to loosen it. Screw in the sensor by hand. Use the wrench to fully tighten the oxygen sensor so it cannot be removed by hand. Replace the air pipes to the correct valves again.

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  • May 20, 2011 | 1998 Chrysler Sebring

    1 Answer

    Match color coded wires


    Ask the person who sold you the sensor. They should have the info. Ebay sellers frequently post connection info on their web sites.

    Sep 26, 2009 | 2004 Saturn ION

    1 Answer

    Replace oxygen sensor for 4cyl 01" Accord - wires don't match


    Don't put a universal oxygen sensor in your vehicle. You will have nothing but problems, and you will have to put an OEM one in it anyway.

    May 30, 2009 | 1996 Jeep Grand Cherokee

    2 Answers

    Oxygen sensor wiring diagram


    My 97 cherokee catalytic converter was stolen, oxygen sensor wires cut. the replacement is black, grey and white. the jeepicon1.png is different color. i need help knowing which wires get connected to which.

    Jun 24, 2008 | 1997 Jeep Grand Cherokee

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