Symptoms Of A Bad Oxygen Sensor - Easy Car Electrics

Is your car having trouble starting? Here you will learn about the signs and symptoms of a bad oxygen sensor.

Easy Car Electrics

[LA_Commander]

"Here are the symptoms of a bad oxygen sensor: 1) check engine light. The check engine light is a symptom of a bad oxygen sensor" gee, really? That was a terrific and very detailed explanation

[geoestrada]

I never change this oxygen sensors since 2005. On Toyota Tacoma. I’m learning more about this sensor. Thanks 🙏

[paulnelson]

Stuck in Salina KS because my bank 2 rear O2 sensor has gone out. Horrible gas mileage. Praying to God when auto shops open Monday I can get it replaced.

[sarinsarin]

Just alittle note, the upstream sensor(s) are called Air Fuel Ratio sensors not Oxygen sensors and the downstream are called Oxygen sensor. Don't get these confused with each other as they look the same but do completely different things.

[davemoll]

O2 sensor light is most always a bad connection. Un plug and clean with contact cleaner. Clear code and you’re good to go.

[vio]

Thanks God. I got this problem for long time, but now I know what is about ! Very low gas milege, also problem with catalitic convertor because of this aer-fuel sensor. Thanks a lot ! God bless !

[spawnneverland]

Ah been wondering why my engine is missing. Looked everywhere for it too!

[hiromiya]

Check engine light is NOT! a symptom, it’s a warning.

[jaytei]

Award for the most use of the words "Oxygen sensor"

[georgeh]

Never had any engine warning light show up on mine. Unscrewed the sensor to check for fouling, looked ok so reinstalled, hey presto, engine functioned ok with better response/acceleration and a smoother idle. I think the sensor had an "unclean earth" via it's rusted thread, presumably the unscrewing action had cleaned the thread thus giving a good earth.

[SameerKhan-zbjk]

Hi i was cleaning the oxygen sensor by spray when car was start but by mistake the spray red pipe gos to the vacuum hose pipe now how to take out that pipe and what will happened the dose it effects the engine or gasket or what plz tell me thanks and best regards ❤

[jimmieblue]

Exactly why carburetors are king no electronics to cost you money and they get better mileage and lower emissions. And You can easily fix them at home. CARBURETORS NO ELECTRONICS. we win.

[richardhodges]

Does the upstream sensor the one that causes the loss of gas mileage

[elbinv]

you need to go back to the Robot factory 😅

[mfamfa]

Hi
Your video clip is very helpful for me and other thank for making this video ❤

[delroyjohnson]

U Teaches Me Alot In This Video Baby Thnks

[deanjagger]

Should you replace them all, I think there are 4 on my van, It's a 2014 Town and Country van?

[monstermind]

I have a toyota camry 2018 se 2.5l
I have misfire cyl 2. Code and also random misfire I believe p3000
I have new fuel pump and filter. New Injectors.. new spark plugs. swapped coils to check if it changes to different cylinder code.
Checked leakage for valves. Good.
Intake sensor good. MAF sensor is good.
Haven't checked compression. But when I disconnect cylinder 2 while misfiring it doesn't change meaning seems that exactly still the area where the problem resides. All others (1, 3, 4) when disconnected cause it to misfire even more..
I do also get engine power reduced sign on dash.
May my 02 sensor for any faulty reason possibly be causing my ECU to think it's running rich or lean and be causing the random misfire and the specific cylinder 2 misfire?? Without popping up a 02 sensor code on OBD 2 scanner???

[rodrigosaccount]

What if all the lights turn on but I still get p0172 on a test by autozone?

[nathanfoss]

With bad 02 sensor, the ECU is not misinterpreting signals. The ECU is correctly interpreting bad signals that come from 02 sensor.