O2 Sensor Heater Quick-Fix

[@uteundolaf]

Thanks a million. I did install the 10 Ohm resistor and a bulb instead of the broken heater circuit and it worked!!!!!!It made the ECM believe the heater is fucntioning and surpressed the P0135 error code to be set and the MIL light to get on. This allowed me to pass the technical emission inspection with no problems. The only problem is that the resitor gets very hot, so this item needs to be place with much care to not melt down tubes and wires in the engine room

[@2islandboy]

I am a mechanic and this is one the best videos that I have seen. Lots of really useful information, Thank You

[@cyclecircuit]

the video is not a quick fix but rather a very informative description of the system operation, values and trouble shooting.

[@kimberlybrooks6434]

so how would you go about fixing this issue? i keep changing the o2 sensors but keep getting the heater circuit code

[@ChueyMr11]

Very informative mano, there are several 1 ohm heater circuits that are 1 ohm resistance. Nominal current draw thru heater circuit is 7 amps (pulsed). heater resistance is critical

[@lohikarhu734]

thanks for a quite informative video...always something new to learn! now, the AFR sensor?

[@dits108]

I have a VW 1.4 golf TSI. sensor two in bank one. heater circuit malfunction Open circuit error. The ECU is not giving the Earth. pin one is showing fine 12 V i've tried three different senses. there is no break in the wire I have checked from ECU to pin number two

[@ADPTraining]

Change ECU

[@denenv1973]

great video,unfortunately it doesn't touch on my problem so I'm hoping you can help me. I have a BMW e46. no mil and no codes stored. monitors for heated 02 and cc show incomplete or not ready. was told possible exhaust manifold to cat leak pre 02 could be the cause due to perimeters not being met. is this possible and any advise on how to confirm or determine precise location of leak?

[@djbmw1]

Dene Vlach this video DOES answer that question. It tells you how to test your O2 heater circuit, and how to fake it as well, if need be. Thats all the info you need.

[@scodamatches6430]

Gostei, realmente a dica a Judá os técnicos. Acredito que muitos Mecânicos ja conseguiram resolverem muitos problemas relacionados.

[@tonycavez]

ajudar kkkkkkkkkkkkkkk

[@SeanHollingsworth]

Thank you for posting this video! Having an 'older' vehicle (1998,) I only have a single wire O2 sensor. :-)

[@asifhameed2859]

Hi I have toyota prius c giving bad fuel mileage with no dtc error but when I scanned it shows o2 sensor available but o2 sensor heater not available. Please help me in this. Regards

[@ADPTraining]

O2 is always there, but probably faulti.

[@724riff]

HI I HAVE A 07 ranger sport 4.0 sohc both 1 and 2 upstream banks are stuck rich ,,, and that's with new sensors .... when you say the o2 sensor heater will shut down if it detects a problem can you give me a list of where or what types of problems ,,,,,,,, truck just runs rough ,,,,,,, and slow at acceleration with hesitation ,,,,,, cleaned the maf and iac ,,,,,,, but I get no other codes escept stuck rich on banks 1 and 2 . something is triggering that stuck rich which if I am not mistaken measns to much oxygen is that correct ,,,,,,,,,,, and its pretty bad but I just get a check engine light solid not flashing .

[@crayfishtheman]

I am having the same issue on my 1997 ranger did you ever figure out what the issue was?

[@djtoo7]

ok so to bypass the heater circuit you need to get a 10ohm resister is there any bypass kit so I don't melt anything I'm assuming it will get super hot....?

[@ADPTraining]

Yes

[@technomotores]

Thank you, fast and to the point of the matter.Keep up the good work.

[@ADPTraining]

Thanks, all we ask is that you HELP US and THUMBS UP>>> ALL THE TIME. We rely on that to keep going.

[@HighestRank]

Right away, master.

[@furyking380]

Wait, is the 10ohm resistor and the test light in series or in parallel?

[@ADPTraining]

Series

[@morganhunt1155]

How long does it take for the heater to get the O2 sensor up to temperature? Thanks for the informational video.

[@ADPTraining]

Half minute

[@rusty358]

Where is the relay for the heater circuit current located?

[@ADPTraining]

Mitchell Alldata

[@contagiousFX]

if i car requires a A/F ratio sensor, but the guy puts an oxygen sensor instead, what would happen?

[@JoeNunes345]

Hi Mandy, i wonder if you could clarify something for me. I've made up a test rig as described in this video, but when i measure the resistance of the rig with an ohm meter the values are less than half of the resistance values of the bulb alone, before i added the 10ohm resistor in parallel with the bulb as shown in the diagram at 1 minute and 50 seconds in the video? I am using an instrument cluster bulb. Do i need a certain wattage bulb? Is it anything to do with the temperature coefficient characteristics of the rig - (the fact that i am testing the rig when cold)??? Please let me know where i am going wrong. Many thanks, Joe

[@ADPTraining]

Ok, the 10 Ohm resistor has to be a BIG ceramic type to dissipate the heat. The theory is that if the circuit has enough juice for the resistor and the light bulb to turn ON, then it's all fine. This is the same characteristic for the O2 sensor Heater. If bulb doesn't light up, then circuit can not provide enough current.

[@CheekyMonkey888]

Well done Maybe re-title "Quick Diagnostic"

[@ADPTraining]

Thanks for commenting... Here you can find the books for it... www.autodiagnosticsandpublishing.com/Automotive_Diagnostic_Repair_Book_Catalog.htm

[@nothingfree3524]

wheres the damn quick fix?

[@ADPTraining]

Here

[@unfundedopportunities7278]

How long does O2 sensor take to reach operating temp from cold start? My secondary air pump turns on 5 seconds after cold start, and turns off 20 seconds later. Too soon for turn off. Getting code P0411.

[@ADPTraining]

Few secs

[@RADIOSCATRACHASUTAN]

I am lost with a Volvo s40 2004 t5 o2 sensor, the ECU say is p0135 error, reseted ECU and it comes back.. I measured the voltage at the O2 connector and it only gets 3v .. dunno if supposed to be 3 but i thought supposed to be 10 or 12 .. am lost.. anyone able to shine some info?

[@ADPTraining]

Need more info

[@ossie69]

How to I disable the POO56 error so the engine light goes off temporarily to be able to pass inspection? Once I pass inspection I can dedicate time to getting it repaired permanently.

[@ADPTraining]

+Oswaldo A. Gonzalez You can't that Oswaldo, that's the purpose of OBD-2 system. You need to fix the issue first, pass the monitors (tests run by the ECM), then the ECM generates a passing score. Inspections just read the ECM score. THey don't pass or fail you. It's your car that fails you.

[@3OBTPA]

+Oswaldo A. Gonzalez unplug the check engine light bulb. :)

[@asomind]

remove the bulb from the dash...

[@petecurran3995]

Thanks - good info! 👍

[@markmooch]

Is this applicable to a NOx sensor?

[@ADPTraining]

Maybe

[@goldfish02rex]

Very nice! Thanks, right to the point

[@ADPTraining]

Thanks for posting.

[@contagiousFX]

i don't think it's necessary to know how many amps the oxygen sensor to operate vs the A/F ratio sensor. If heater is not working simply check power, if there's power, replace oxygen sensor done.

[@loneranger2162]

All you need to do is check with an ohm meter. The heater element can be checked with an ohm meter, unlike the O2 sensor itself since it could be damaged.

[@ADPTraining]

Guys an Ohm test is not conclusive and has nothing to do with current. O2 sensors draw a few Amps of current. If you do an Ohm test of an O2 heater hanging by a thread, or single wire STRAND, it'll pass the test. Forget it, that heater will no work. It'll pass the Ohm test but these tests are not conclusive. You need to stress the circuit.

[@loneranger2162]

ADPTraining If it's hanging by a thread, if that thread was sufficient to pass the required amperage, all should be well, else the wire would burn through (just as a fuse would) resulting in an open circuit.

[@ADPTraining]

No that is not true and it's exactly what I'm trying to explain to you. It is often the case, that the circuit has a wiring issue and the wire condition or connector contact points is enough to pass the Ohm test, but not the provide proper current flow. THe best case are injectors (900 mA Max current) or even fuel pumps (2 to 3 A current). These values are not enough to melt a weak connection, but will cause havoc on the system. It won't be an issue on an ignition coil (4 to 6A) or a cooling fan. These devices are high current and as you mentioned, the connection will melt or fail altogether first. But on many other components it is a major issue... www.autodiagnosticsandpublishing.com/Automotive_Diagnostic_Repair_Book_Catalog.htm

[@448646094]

Hello Toyota diesel car changed lambda sensor, an error came back. Resistance 13Ohm the heating circuit .12v goes to the heating circuit. The ECM does not come from ground.The error code P0031. I deleted an error, but did not come to ground. What should I do?

[@abdoudfi8205]

Good job thanks

[@ADPTraining]

Thanks, DONATE: www.paypal.com/donate/?hosted_button_id=F9W5VPHTGWBV6

[@aung2009kyin]

If O2 sensor and AF senosr mix up.. u will get heater circuit low code.. connector can be mix..connector different is not true..

[@ADPTraining]

On some early Toyotas yes, the connector was the same. That is true, but hasn't been the case for some time now. Besides, lots of AFR sensors are 5 and 6 wire sensors, so they differ.

[@omaradan8062]

Thanks good understand idea video I like this post

[@ADPTraining]

👍 www.autodiagnosticsandpublishing.com/

[@trealwilliams1563]

Nice 👍

[@prettybaby80]

O2 sensor not ready. How to fix ? Mercedes

[@ADPTraining]

?

[@viisteist1363]

as if anyone even knows wtf is series or parallel relative to the other weird stuff on the screen

[@dougjstl1]

Quick fix no I don't think it fixes it it may tell you that it's broken but that doesn't fix it or it doesn't fix anything you have to replace it to fix it

[@djbmw1]

dougjstl1 or fake fix it with the resistor + bulb to pass an etest

[@markkrawczuk1943]

?????? you nuts , even the older o2 sensors give you a voltage reading which is dependantt on the Air Fuel Ratio , it does read the afr,.

[@ADPTraining]

No it doesn't produce a voltage, see here on my site. www.diycardoctor.com/air_fuel_ratio_sensor.htm

[@73superglide62]

dodge truck heater circuit problem

[@dougjstl1]

Fixing it that's not really fixing it that's touching it you didn't really fix a broken part so that's a little different in the English term I guess you're trying to fix the problem by replacing the bread O2 sensor in knowing if it's really bad or not but it's not really fixing it it's fixing the problem but not fixing the O2 sensor

[@laurimandelli6320]

Top

[@ADPTraining]

Great

[@UFGator1972]

Quick fix? You are kidding, aren't you?

[@ADPTraining]

Yes

[@jakejones5736]

Misleading. The ONLY thing being "fixed" is one's inability to diagnose the heater.

[@addiwhyyoubooted7909]

Jake Jones its not about the heater lmao

[@FLoYdKNLove]

Lol

[@ADPTraining]

Lol

[@BADD1ONE]

bla bla bla. so replace that bad boy?

[@zdzichzcan2808]

turn off audio please

[@HighestRank]

Ok, fine.

[@garycleveland6410]

You will still fail an emissions inspection

[@jockiboy]

nice p0rn music