HOW TO KNOW IF OXYGEN SENSOR IS BAD. TEST OXYGEN SENSOR

HOW TO KNOW IF OXYGEN SENSOR IS BAD. TEST OXYGEN SENSOR
If you have code and engine light on for Oxygen Sensor we will explain what could cause that and how to test oxygen sensor. By using a cheap scanner your can read the voltage from the oxygen sensor and figure out if you have bad oxygen sensor on your car. We demonstrated what are the normal readings of a good upstream oxygen sensor and we demonstrated what the readings of a bad upstream oxygen sensor may look like.
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[@akemmanuel7819]

Emmanuel need your help

[@tomslover7512]

Thanks!! Your explanation really cleared things up for me. Great job!

[@nature_photography_yukon]

Thanks, that's really helpful!

[@davidbryant5875]

Thank you buddy!

[@effahprincee8795]

Correct 🙏🙏

[@joebagofdoe4762]

Great video BUT was this a wide band upstream sensor?

[@tele3phono]

Very helpful to understand readings on o2 sensor. What about downstream sensors? How should the reading look?
Thanks!

[@BcottStudios]

Shouldnt be moving much at all

[@RewX3]

What if the downstream sensor is jumping up and down at 2500 rpm just like sensor bank 1 (upstream)? I'm getting a po421 code, is the downstream sensor bad?

[@Splashfun2000]

The scanner you are using is not available anymore, what is the latest model ?

[@markshipp4186]

What's the name of that scanner and where do I buy can I get one auto zone

[@habitat2371]

What if it's just a straight line...?

[@NxLve_]

Is it normal for the current to be negative ?

[@bryanroldan994]

My o2 sensor stays a .95 volts on idle. Is that ok..? Goes to .o4 to 1.0 when gas pressed.

[@jygogaming3550]

Thanks man my o2b1s1 is reading 2.3 volt it doesnt drop to rich to lean it stay at 2.0 to 2.3 volt that bad

[@jasonjackson4462]

My subaru stays around 2.3 , I don't get it lol

[@jygogaming3550]

@@jasonjackson4462 nvm my car have AFR o2 sensor it stay in that range its normal

[@abbasabbas2935]

السلام عليكم صديق انا من متابيع قناتك لدي سيارة النترا هونداي hd٢٠١٠ عند فحص محرك يظهر كود p0136 عطل حساس اوكسجين ٢ تم استبداله باخر مستعمل ولا يزال نفس كود تم فحص الاسلاك وجدت فيه قطع تم اصلاحه ولا يزال نفس كود يظهر وتم ايضا استبدال حجر البيئه باخر جديد صيني ولا يزال العطل ارجو توضيح سبب عدم عمل الحساس sensre 1bank2

[@RGV2300]

I just did this in a peugeot 406, the good o2 sensor is the one after the cat, the signal is consistent, it doesn't spike. However, the bad sensor, the one that is faulty according dtc's, is the one before the cat, in this case, it spikes a lot, but it ranges from .1 to .8, same as the good one (slightly lower in the good one, as the cat is doing its thing). So signaling in this case i think it's good? as you are showing that spikes aren't a faulty sensor indicator. I think is the heater then, as the dtc is p0140, it's not really specific about what is the cause (can be signaling or heater).

[@RGV2300]

@frank 1976 at the end, the o2 sensor was bad, i got confused because the scanner told me the good one was bad.

[@RGV2300]

@frank 1976 what year is your car? You should be getting a similar signaling to the video or similar to the good one. But if there is a fault code, it's like 90% chance it is just bad. The one from the peugeot has already 19 years (supposing it was never changed).

[@RGV2300]

@frank 1976 definitely should have a behaviour similar to the video. If not, doesn't matter, just look for the dtc. They told you if the behaviour is innapropiated (too much seconds without major fluctuations) or the heater is open.

[@swilson500]

hi, love your videos. looking for some guidance: i'm testing o2 sensors (no code) with a foxwell nt530 scanner on a 2009 civic sedan with 90k miles. idle is a little bouncy with some vibration and mpg's are down a bit. i'm considering a preemptive upstream sensor replacement given the age/mileage. the graph on the upstream sensor fluctuates between -.02 and +.04, but mostly .01 and .02 milli amps. the downstream range is .175 to .64, but mostly between .5 and .6 volts. short term fuel trim is -1 to -3% and long term is -3 to -7%. any thoughts would be appreciated.
btw, this seemed odd to me....your video posted by someone else: ua-cam.com/video/Hsbx7I3pT1A/v-deo.html
thanks, Scott

[@duviday]

Yeah you already knew it was the oxygen sensor because you had a check engine light and a code for it...

[@bjhachannel6747]

Ur video suck bro

[@andreialexander405]

Pretty disrespectful to speak with this kind of accent. Might as well just speak your language, why bother English

[@CalebJHoman]

Can you not understand him ?

[@curse_illusionss2871]

If you can’t understand what he’s saying say that bro😂

[@nature_photography_yukon]

I can understand him perfectly well!!

[@bassboosted_rdz2269]

L

[@myyoutubechannel3161]

You foul mouth go wash it out with soap