Question about 1991 Ford Ranger Supercab

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O2 wire has come off and having a problem finding out where the wire is to be reattached

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Usually close to the exhaust manifold between the motor and the firewall.

Posted on Sep 08, 2009


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1996 Acura TL check engine light on sets these codes po155, p0141,p0135 how do I fix it?

Okay, so usually when there are a large number of codes that show up at one time they are usually related, so one problem could cause multiple codes to appear. Here is a link to a trouble code reference sheet for the 96 - 98 Acura TL Acura 9698 3 2TL Trouble Code Info

From this sheet we can see that your issues all relate to your o2 sensor heater circuit, so the first step would be to check all your fuses, the problem could be as easy as your o2 heater circuit fuse is blown. next i would check the connections to the o2 sensors themselves, make sure you have good connections and clean the connections with some di-electric grease which you can pick up at any autostore and spray it in both connectors (the wiring harness for the car and the connector attached to the o2 sensor) let them dry then reattach them. if this does not fix the problem sadly you might have to start replacing the o2 sensors. Good Luck

Apr 25, 2014 | Acura TL Cars & Trucks

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O2 sensor wiring diagram 2005 ford expedition
Free wiring diagrams & TSB's-all makes and models. Your 4 O2 sensors are shown under System: engine, Subsystem: fuel controls.

Dec 23, 2013 | Ford Expedition Cars & Trucks

1 Answer

Problem with ford explorer v8 reading high voltage a sensor 1 bank 1

Clear the computer. Then if the reading is still high, you may have to replace the wire or the sensor. I don't have the specs for the O2 sensor available, could be sensor was bad and you happened to catch the connector problem but did not find the cause of your woes.

Now some O2 wiring has resistor properties, so shortening will change feedback value. Just fixing a pin connector should be okay. Also, the O2 sensor can sometimes have a micro cooling tube moulded into the wires. This type of O2 has its own heating element and vents excess heat through microtube. Try new O2.

Nov 20, 2012 | Cars & Trucks

1 Answer

O2 sensor wire identification

I have some info for you. First, you can get a wiring diagram FREE at by registering your vehicle. This should help you find the heat wire.

Next, you need to find out if your individual O2 system uses a vented wire casing for heat removal. Some manufacturers will make one of the wires vent off the excess heat generated by the internal heater in the O2.

I can not say what you should see, just read that sometimes people try to adapt a different O2 to the harness. They want to switch wires to a different prong in the plug harness to make Brand X sensor work. You are trying to recreate your wire harness with liquid plastic and may therefore be headed for failure by sealing the ventilation system,IF you have this type of system.

You may be able to obtain a harness from a Salvage yard. If your local places do not have it, try which is a Nationwide Salvage listing service which ships to your door.

You may, by putting the time in the internet, find the ventilated wiring system articles I am warning about for yourself for applications. I hope my response is helpful. You may be able to also obtain a better heat shield within a Salvage yard. Whatever you use, heat resistant manifold paint would prolong the replacement shield.

Apr 24, 2012 | 2001 Dodge Stratus

1 Answer

CODES P0031 AND P0051 A/F RATIO HEATER CIRCUIT low have no batt voltage at sensors can't find any blown fuses any idea 04 toyota sequoia

You will need wiring diagrams, to find components
and diagnose the problem

You have 2 O2 Sensor Codes-- for Heater issues

I would look for an O2 Relay, for the heaters, once
you have a diagram to work with

Battery voltage will be to the heaters only

Don't put your meter on the black sensor
wire, you may ruin the sensor, by loading the circuit

Just work the 2 white heater wires on chassis
side, for the 12 v

Unplug the O2 Sensors, and probe the harness heater
wires only, until you get your 12v back

Feb 23, 2011 | 2004 Toyota Sequoia

2 Answers

I have a code po141 what i have to do what piece a have to change in where are this pieces

Code PO141 indicates that the heater circuit in the Oxygen Sensor mounted in Bank 1 (Driver's Side) is not working properly. The ECM has determined that the sensor is taking too long to heat up to around 600 degrees and then switch out of close loop mode. If the ECM determines that it is taking too long then a code PO141 will be set. Normally it is the sensor itself that is defective. Replacing the sensor normally will fix the problem. However it can be the wiring harness or a a bad connection. Check the wiring carefully and look for a short in the wiring. If you find none then replace the O2 Sensor. If this does not repair the problem do not replace any other parts. Time to take it to a professional with professional tools and diagnostic skills to find the problem. The O2 sensor is more than likely the problem but there is no guarantee that will fix it.

Jun 10, 2010 | 2002 Chevrolet S-10

1 Answer

Cant find o2 sensor wire in engine??

under the vehicle screwed into the exhaust system one before and one after the cat converter

Apr 09, 2010 | 2003 Hyundai Tiburon

1 Answer

Universal o2 censor has 2 white 1gray 1black existing wires areblack/tan dkgreen/orng blk/ltbl blk/pink

First what do you mean by a universal o2 sensor? You must make sure that you have the right o2 sensor, most newer vehicles have four o2 sensors 2 upstream and 2 downstream, upstream and downstream are meant to show where the sensors are in relation to the catalatic converter,some o2 sensors have 1 wire or up to 4 wires most with four wires are heated o2 sensors so you need to be sure you ve gotten the right o2 sensor for you vehicle as well as the right replacement for the proper location! My experience is that most after market o2 sensors have the same colored wires as the vehicle. Also most o2 sensors have electrical plugs? If you need help finding the right o2 sensor for your vehicle then please dont be affraid to ask!

Feb 12, 2010 | 1996 Jeep Grand Cherokee

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

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