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O2 sensor wiring

Wiring is not connected correct how to reconnect

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How to fix bank 1 sensor 2 O2 sensor on 2002 ford escape

look under truck and follow exhaust system from front towards rear the o2 sensor 2 is the sensor after he cat converter it looks like a tube with a wire connection mounted on top of exhaust pipe disconnect connection and unscrew sensor replace and reconnect

Apr 11, 2013 | 2002 Ford Escape

1 Answer

O2 wiring diagram

The pink and black-white wires are for the heater, the other two are for the sensor circuit.
If you can tell me which sensor I can get the colors for you.

Aug 14, 2012 | 1996 Cadillac Eldorado

1 Answer

What wire on the o2 sensor is the correct one to connect a air/fuel ratio gauge on a 09 silverado 1500 with a 5.3

You can not connect to the heater wire or ground,
so I guess the output or sensor wire

I wouldn't do that, because your not supposed
to load that wire, or you run the chance of ruining
the O2 Sensor.

Forget it
Why do you need to know AFR anyway !

Weld in a separate bung for that device

Mar 13, 2011 | Chevrolet Silverado 1500 Cars & Trucks

1 Answer

Would like to know how to install a Bosch Universal O2 sensor #15726. did not get any installation instructions in the box. I would like to know which wire to connect the black wire to and which wires to...

You do not install a UNIVERSAL O2 Sensor

You install a Bosch OEM Sensors

Why would you even buy such a thing?

Go to NAPA, buy the correct sensor,
screw it in,plug in the connector,your done

Feb 18, 2011 | Nissan Altima Cars & Trucks

1 Answer

How to connect colors of 4 wire o2 sensor to 3 wire connection of hyundai accent

You have an incorrect O2 sensor. It will not work. A correct sensor will plug in without any problem. If you bought the sensor at a parts store, you need to return it, and exchange it for the right part.

Feb 16, 2011 | Hyundai Accent Cars & Trucks

1 Answer

I have a 2001 Ford F150 XLT with a 4.2L manual trans I am have a problum for the drive cycle to compleate I have a NGS scanner and 3 mo ago i clean the o2 sensor the check engine light has not came on for...

P0100 OBD-II Trouble Code

Technical Description

Mass Air Flow (MAF) Circuit Malfunction

Basically this means that there's a problem with the Mass Air Flow (MAF) sensor or circuit.

You will likely not notice any serious driving problems, but there may be symptoms like a general decrease in power or sluggishness.

A code P0100 may mean one or more of the following:

* The MAF may be disconnected, or a wiring connection may be bad.
* The MAF sensor may be faulty.

Possible Solutions

Use an OBD II Reader (or go tou your local parts store and they will for free) and reset the code and see if it comes back.
Then start with the cheapest, easiest repair procedures:

* Check the Mass Air Flow Sensor wiring/harness is connected properly and that there are no broken / frayed wires.
* Unplug and reconnect the MAF wiring harness a few times to clear the contacts.
* Check the voltage of the MAF sensor (refer to a repair manual for vehicle specific information).
* Replace the MAF sensor.

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Jul 05, 2010 | 1996 Ford Explorer

2 Answers

How do you replace the rear 02 sensor on a 2004 trailblazer? I can't find any diagrams on the web. Maybe I haven't looked hard enough yet.

Follow the exhaust pipe to beyond the catalytic converter. The "rear" or down stream O2 sensor is usually on top of pipe behind the converter. Follow the wire from it to its disconnect plug andf unplug it. Use the correct size open end wrench to remove the sensor. Reverse to istall replacement. You really don't need a diagram - just your mark 1 eyeballs.

Apr 18, 2010 | 2004 Chevrolet TrailBlazer

2 Answers

Honda Legend 1988

your o2 sensor hooks into your exhaust system. where it goes into the exhaust their will be a wire connector somewhere close by unless it melted away or is gone you wont see where it goes into the computer

Apr 15, 2010 | 1988 Acura Legend

1 Answer

Lower O2 sensor on a '98 Civic EX coupe.

it might be easier picking up a plug at a salvage yard then just connect to the correct colors,if you have four wires two should be black and two white,

Nov 24, 2009 | 1998 Honda Civic

1 Answer

O2 sensor

Most likely t will work, just make sure you get the O2 ground,the heater element and signal return circuits connected correctly.

Dec 16, 2008 | 1998 Audi A4

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